I Know What You Did Last Summer ( song ) - wikipedia I Know What You Did Last Summer ( song ) `` I Know What You Did Last Summer '' Single by Shawn Mendes and Camila Cabello from the album Handwritten ( Revisited ) Released November 18, 2015 ( 2015 - 11 - 18 ) Format Digital download Recorded 2015 Genre Pop Length 3 : 43 Label Island Songwriter ( s ) Shawn Mendes Camila Cabello Ido Zmishlany Noel Zancanella Bill Withers Producer ( s ) Ido Zmishlany Noel Zancanella Shawn Mendes singles chronology `` Stitches '' ( 2015 ) `` I Know What You Did Last Summer '' ( 2015 ) `` Treat You Better '' ( 2016 ) `` Stitches '' ( 2015 ) `` I Know What You Did Last Summer '' ( 2015 ) `` Treat You Better '' ( 2016 ) Camila Cabello singles chronology `` I Know What You Did Last Summer '' ( 2015 ) I Know What You Did Last Summer2015 `` Bad Things '' ( 2016 ) Bad Things 2016 Music video `` I Know What You Did Last Summer '' on YouTube `` I Know What You Did Last Summer '' is a song by Canadian singer Shawn Mendes and Cuban - American singer Camila Cabello. It was released as the lead single from his 2015 revisited version of his debut studio album, Handwritten ( 2015 ) via Island Records on November 18, 2015. It reached the top 20 on the US Billboard Hot 100 and on the Canadian Hot 100. Mendes and Cabello promoted the song with several televised performances, including on The Tonight Show Starring Jimmy Fallon and at the 2016 People 's Choice Awards. Contents 1 Background and composition 2 Awards And Nominations 3 Commercial performance 4 Music video 5 Live performances 6 Charts 6.1 Weekly charts 6.2 Year - end charts 7 Certifications 8 References 9 External links Background and composition `` I Know What You Did Last Summer '' was written backstage spontaneously on one of Taylor Swift 's The 1989 World Tour stops, in which Mendes was an opening act and Cabello was the surprise guest as part of the group Fifth Harmony. `` We were just backstage. There were like 100 people in my dressing room at the time, and it was madness back there, but I had this guitar and I was just jamming out, and we basically wrote a pre-chorus and a chorus in like 30 minutes, '' Mendes said in a video released about the making of this song. `` And we planned to go into the studio, and it was like an 11 - hour studio session where we finished writing the song. '' After a live performance on Live with Kelly and Michael, Cabello said, `` We were just kind of jamming out. We were n't really just writing a song. We kind of started spitting out melodies and put lyrics to it ; I do n't think we knew we had a song. '' The artists co-wrote `` I Know What You Did Last Summer '' with its producers Ido Zmishlany and Noel Zancanella, with Bill Withers receiving songwriting credits for the sampling of his 1971 single `` Ai n't No Sunshine ''. Cabello described `` I Know What You Did Last Summer '' as a `` conversation between two people in a relationship where it 's dying, but nobody wants to admit that it 's dying. '' The song is sung in A minor, with a tempo of 114 bpm and a time signature of 4 4. Awards And Nominations Year Award Category Result 2016 iHeartRadio MuchMusic Awards Fan Fave Video Won 2016 Best Pop Video Won 2016 Video Of The Year Nominated 2016 Premios Juventud Favorite Hit Nominated 2016 Teen Choice Awards Choice Music : Breakup Song Nominated Commercial performance `` I Know What You Did Last Summer '' debuted at number ninety - seven on Billboard Hot 100 for the chart dated December 5, 2015 and jumped to number fifty - five on the following week. On the week ending January 9, 2016, the song jumped from number forty - six to number thirty - three. The song has since peaked at number twenty for the chart dated January 30, 2016, becoming Mendes ' second top 20 single, after `` Stitches '', which peaked at number four on October 31, 2015. Music video A music video for the song was released on November 20, 2015 and was directed by Ryan Pallotta. In the video, Mendes and Cabello, ages 17 and 18 respectively at the time of the making of the song and filming of the video, are seen walking through a dark and desolated landscape. Cabello sings about how she cheated on Mendes but tries to convince him she did not mean to. They keep trying to walk towards each other but are n't moving. They are seen weathering a sandstorm, followed by a snowstorm and a rainstorm which culminates in a standoff of sorts as they desperately attempt to repair their relationship. The music video has over 148 million views as of July 2017. Live performances Mendes and Cabello 's first televised performance of `` I Know What You Did Last Summer '' was on Live with Kelly and Michael on November 20, 2015. They also performed the song on The Late Late Show with James Corden on November 24, 2015, and at Pitbull 's New Year 's Revolution on December 31, 2015 in Miami, Florida. Mendes and Cabello performed the track again on The Tonight Show Starring Jimmy Fallon on January 4, 2016. Preceded by a performance of `` Stitches '', Mendes and Cabello sang `` I Know What You Did Last Summer '' at the 2016 People 's Choice Awards. They also performed together on The Ellen DeGeneres Show on February 17, 2016. Charts Weekly charts Chart ( 2015 -- 16 ) Peak position Australia ( ARIA ) 33 Belgium ( Ultratop 50 Flanders ) 21 Belgium ( Ultratip Wallonia ) 22 Canada ( Canadian Hot 100 ) 19 Canada AC ( Billboard ) 18 Czech Republic ( Rádio Top 100 ) 27 Czech Republic ( Singles Digitál Top 100 ) 14 Denmark ( Tracklisten ) 21 France ( SNEP ) 192 Germany ( Official German Charts ) 90 Greece Digital Songs ( Billboard ) 9 Hungary ( Rádiós Top 40 ) 7 Hungary ( Single Top 40 ) 26 Ireland ( IRMA ) 42 Italy ( FIMI ) 53 Netherlands ( Dutch Top 40 ) 12 Netherlands ( Single Top 100 ) 17 New Zealand Heatseekers ( Recorded Music NZ ) Norway ( VG - lista ) 18 Poland ( Polish Airplay Top 100 ) 27 Portugal ( AFP ) 12 Slovakia ( Rádio Top 100 ) 67 Slovakia ( Singles Digitál Top 100 ) 19 Sweden ( Sverigetopplistan ) 24 Switzerland ( Schweizer Hitparade ) 51 UK Singles ( Official Charts Company ) 42 US Billboard Hot 100 20 US Adult Top 40 ( Billboard ) 28 US Mainstream Top 40 ( Billboard ) 10 Year - end charts Chart ( 2016 ) Position Canada ( Canadian Hot 100 ) 86 Netherlands ( Single Top 100 ) 69 US Billboard Hot 100 86 Certifications Region Certification Certified units / Sales Australia ( ARIA ) Platinum 70,000 Canada ( Music Canada ) Platinum 80,000 Italy ( FIMI ) Gold 25,000 New Zealand ( RMNZ ) Gold 15,000 Norway ( IFPI Norway ) Platinum 10,000 Sweden ( GLF ) Platinum 40,000 United Kingdom ( BPI ) Silver 200,000 United States ( RIAA ) Platinum 1,000,000 sales figures based on certification alone shipments figures based on certification alone sales + streaming figures based on certification alone References ^ Jump up to : Garibaldi, Christina ( November 16, 2015 ). `` Exclusive : Get A Sneak Peek At Shawn Mendes And Camila Cabello 's New Video ''. MTV. Retrieved December 4, 2015. ^ Jump up to : Roth, Madeline ( November 20, 2015 ). `` Shawn Mendes And Camila Cabello Put Their Stormy Relationship To The Test In ' IKWYDLS ' Vid ''. MTV. Retrieved December 7, 2015. Jump up ^ `` Shawn Mendes `` I Know What You Did Last Summer '' Sheet Music - Download ``. Musicnotes.com. Retrieved December 4, 2015. Jump up ^ `` Shawn Mendes and Camila Cabello Perform ' I Know What You Did Last Summer ' for ' Late Late Show ' ''. Billboard. November 24, 2015. Retrieved December 4, 2015. Jump up ^ `` Shawn Mendes & Camila Cabello Perform On ' Pitbull 's New Year 's Revolution ' & It 's Super Sexy ''. Bustle. January 1, 2016. Retrieved January 4, 2016. Jump up ^ `` Shawn Mendes and Camila Cabello perform on `` Tonight Show '' ``. Headline Planet. January 4, 2016. Retrieved January 4, 2016. Jump up ^ `` Shawn Mendes and Camila Cabello Perform ' I Know What You Did Last Summer ' at the 2016 People 's Choice Awards ''. Billboard. Prometheus Global Media. January 6, 2016. Retrieved January 6, 2016. Jump up ^ `` Shawn Mendes & Camila Cabello Perform Together On Ellen And The Chemistry Is So Real ! ''. CapitalFM. February 17, 2016. Retrieved February 18, 2016. Jump up ^ `` Australian-charts.com -- Shawn Mendes & Camila Cabello -- I Know What You Did Last Summer ''. ARIA Top 50 Singles. Retrieved February 27, 2016. Jump up ^ `` Ultratop.be -- Shawn Mendes & Camila Cabello -- I Know What You Did Last Summer '' ( in Dutch ). Ultratop 50. Retrieved April 15, 2016. Jump up ^ `` Ultratop.be -- Shawn Mendes & Camila Cabello -- I Know What You Did Last Summer '' ( in French ). Ultratip. Retrieved March 6, 2016. Jump up ^ `` Shawn Mendes -- Chart history '' Canadian Hot 100 for Shawn Mendes. Retrieved January 20, 2016. Jump up ^ `` Shawn Mendes -- Chart history '' Billboard Canada AC for Shawn Mendes. Retrieved December 4, 2015. Jump up ^ `` ČNS IFPI '' ( in Czech ). Hitparáda -- Radio Top 100 Oficiální. IFPI Czech Republic. Note : insert 201621 into search. Jump up ^ `` ČNS IFPI '' ( in Czech ). Hitparáda -- Digital Top 100 Oficiální. IFPI Czech Republic. Note : insert 20161 into search. Jump up ^ `` Danishcharts.com -- Shawn Mendes & Camila Cabello -- I Know What You Did Last Summer ''. Tracklisten. Retrieved January 25, 2016. Jump up ^ `` Lescharts.com -- Shawn Mendes & Camila Cabello -- I Know What You Did Last Summer '' ( in French ). Les classement single. Retrieved January 25, 2016. Jump up ^ `` Offiziellecharts.de -- Shawn Mendes & Camila Cabello -- I Know What You Did Last Summer ''. GfK Entertainment Charts. Retrieved April 15, 2016. Jump up ^ `` Greece Digital Songs ''. Billboard. Retrieved 29 January 2016. ( subscription required ) Jump up ^ `` Archívum -- Slágerlisták -- MAHASZ '' ( in Hungarian ). Rádiós Top 40 játszási lista. Magyar Hanglemezkiadók Szövetsége. Retrieved March 10, 2016. Jump up ^ `` Archívum -- Slágerlisták -- MAHASZ '' ( in Hungarian ). Single ( track ) Top 40 lista. Magyar Hanglemezkiadók Szövetsége. Retrieved March 10, 2016. Jump up ^ `` Chart Track : Week 12, 2016 ''. Irish Singles Chart. Retrieved March 25, 2016. Jump up ^ `` Top Digital - Classifica settimanale WK 5 ( dal 2016 - 01 - 29 al 2016 - 02 - 04 ) ''. Federazione Industria Musicale Italiana. Retrieved February 6, 2016. Jump up ^ `` Nederlandse Top 40 -- Shawn Mendes search results '' ( in Dutch ) Dutch Top 40. Retrieved January 16, 2016. Jump up ^ `` Dutchcharts.nl -- Shawn Mendes & Camila Cabello -- I Know What You Did Last Summer '' ( in Dutch ). Single Top 100. Retrieved January 30, 2016. Jump up ^ `` NZ Heatseekers Singles Chart ''. Recorded Music NZ. February 22, 2016. Retrieved February 19, 2016. Jump up ^ `` Norwegiancharts.com -- Shawn Mendes & Camila Cabello -- I Know What You Did Last Summer ''. VG - lista. Retrieved January 23, 2016. Jump up ^ `` Listy bestsellerów, wyróżnienia : : Związek Producentów Audio - Video ''. Polish Airplay Top 100. Retrieved June 6, 2016. Jump up ^ `` Portuguesecharts.com -- Shawn Mendes & Camila Cabello -- I Know What You Did Last Summer ''. AFP Top 100 Singles. Retrieved 23 October 2017. Jump up ^ `` SNS IFPI '' ( in Slovak ). Hitparáda -- Radio Top 100 Oficiálna. IFPI Czech Republic. Note : insert 20167 into search. Jump up ^ `` SNS IFPI '' ( in Slovak ). Hitparáda -- Singles Digital Top 100 Oficiálna. IFPI Czech Republic. Note : insert 20161 into search. Jump up ^ `` Swedishcharts.com -- Shawn Mendes & Camila Cabello -- I Know What You Did Last Summer ''. Singles Top 100. Retrieved February 6, 2016. Jump up ^ `` Swisscharts.com -- Shawn Mendes & Camila Cabello -- I Know What You Did Last Summer ''. Swiss Singles Chart. Retrieved February 29, 2016. Jump up ^ `` Official Singles Chart Top 100 ''. Official Charts Company. Retrieved May 6, 2016. Jump up ^ `` Shawn Mendes -- Chart history '' Billboard Hot 100 for Shawn Mendes. Retrieved January 19, 2016. Jump up ^ `` Shawn Mendes -- Chart history '' Billboard Adult Pop Songs for Shawn Mendes. Retrieved March 6, 2016. Jump up ^ `` Shawn Mendes -- Chart history '' Billboard Pop Songs for Shawn Mendes. Retrieved February 2, 2016. Jump up ^ `` Canadian Hot 100 Year End 2016 ''. Billboard. Retrieved December 9, 2016. Jump up ^ `` Jaaroverzichten - Single 2016 ''. Hung Medien. Retrieved December 25, 2016. Jump up ^ `` Hot 100 Songs - Year - End 2016 ''. Billboard. Retrieved December 8, 2016. Jump up ^ `` ARIA Charts -- Accreditations -- 2017 Singles ''. Australian Recording Industry Association. Retrieved April 23, 2017. Jump up ^ `` Canadian single certifications -- Shawn Mendes & Camila Cabello -- I Know What You Did Last Summer ''. Music Canada. Retrieved April 23, 2017. Jump up ^ `` Italian single certifications -- Shawn Mendes & Camila Cabello -- I Know What You Did Last Summer '' ( in Italian ). Federazione Industria Musicale Italiana. Jump up ^ `` New Zealand single certifications -- Shawn Mendes & Camila Cabello -- I Know What You Did Last Summer ''. Recorded Music NZ. Retrieved March 11, 2016. Jump up ^ `` Norwegian single certifications -- Shawn Mendes & Camila Cabello -- I Know What You Did Last Summer '' ( in Norwegian ). IFPI Norway. Jump up ^ `` Guld - och Platinacertifikat '' ( in Swedish ). IFPI Sweden. Type Shawn Mendes & Camila Cabello in the top right search bar. Click on `` Sok '' and select I Know What You Did Last Summer and see certification. Jump up ^ `` British single certifications -- Shawn Mendes & Camila Cabello -- I Know What You Did Last Summer ''. British Phonographic Industry. Enter I Know What You Did Last Summer in the search field and then press Enter. Jump up ^ `` American single certifications -- Shawn Mendes & Camila Cabello -- I Know What You Did Last Summer ''. Recording Industry Association of America. If necessary, click Advanced, then click Format, then select Single, then click SEARCH External links Lyrics of this song at MetroLyrics Shawn Mendes Awards and nominations Discography Studio albums Handwritten Illuminate Live albums Live at Madison Square Garden EPs The Shawn Mendes EP Singles `` Life of the Party '' `` Something Big '' `` Stitches '' `` I Know What You Did Last Summer '' `` Treat You Better '' `` Mercy '' `` There 's Nothing Holdin ' Me Back '' Featured singles `` Oh Cecilia ( Breaking My Heart ) '' Promotional singles `` Believe '' Concert tours # ShawnsFirstHeadlines Shawn Mendes World Tour Illuminate World Tour Category Camila Cabello Discography Awards and nominations Studio albums The Hurting. The Healing. The Loving. Singles `` I Know What You Did Last Summer '' `` Bad Things '' `` Crying in the Club '' `` Havana '' Other songs `` I Have Questions '' `` OMG '' Featured songs `` Love Incredible '' `` Hey Ma '' `` Know No Better '' Related articles Fifth Harmony Category Retrieved from `` https://en.wikipedia.org/w/index.php?title=I_Know_What_You_Did_Last_Summer_(song)&oldid=808450794 '' Categories : Vocal duets 2015 singles 2015 songs Shawn Mendes songs Camila Cabello songs Songs written by Noel Zancanella Songs written by Camila Cabello Songs written by Bill Withers Song recordings produced by Noel Zancanella Island Records singles Torch songs Songs about betrayal Songs written by Shawn Mendes Hidden categories : Pages containing links to subscription - only content CS1 Italian - language sources ( it ) CS1 Norwegian - language sources ( no ) CS1 Swedish - language sources ( sv ) Music infoboxes with deprecated parameters Articles with hAudio microformats Singlechart usages for Australia Singlechart usages for Flanders Singlechart usages for Wallonia Tip Singlechart usages for Canada Singlechart called without song Singlechart usages for Billboardcanadaac Singlechart usages for Czech Republic Singlechart called without artist Singlechart usages for Czechdigital Singlechart usages for Denmark Singlechart usages for France Singlechart usages for Germany2 Singlechart usages for Hungary Singlechart usages for Hungarytop10 Singlechart usages for Ireland Singlechart usages for Dutch40 Singlechart usages for Dutch100 Singlechart usages for Norway Singlechart usages for Poland Singlechart usages for Portugal Singlechart usages for Slovakia Singlechart usages for Slovakdigital Singlechart usages for Sweden Singlechart usages for Switzerland Singlechart usages for UK Singlechart usages for Billboardhot100 Singlechart usages for Billboardadultpopsongs Singlechart usages for Billboardpopsongs Certification Table Entry usages for Australia Certification Table Entry usages for Canada Certification Table Entry usages for Italy Certification Table Entry usages for New Zealand Certification Table Entry usages for Norway Certification Table Entry usages for Sweden Certification Table Entry usages for United Kingdom Certification Table Entry usages for United States Talk Contents About Wikipedia Español Հայերեն Italiano Nederlands Português Русский Українська Edit links This page was last edited on 2 November 2017, at 23 : 02. 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Question: who sang i know what you did last summer
Answer: Canadian singer Shawn Mendes