Question: Scott Harris worked with which EDM-pop duo and reached #1 on the US Mainstream Top 40 chart in 2016?

Context articles: Here Without You
List of FDR Top 40 number-one singles of 2014
Scott Harris (songwriter)
I Know (Dionne Farris song)
Shy Carter
Stitches (song)
3D (TLC album)
Sound of Your Heart
Top 40 Tracks
The Chainsmokers

"Here Without You" is a song by American rock band 3 Doors Down.
 It was released in August 2003 as the third single from the album "Away from the Sun".
 It peaked at No. 5 on the "Billboard" Hot 100, for the week ending November 8, 2003.
 Only their songs "Kryptonite" and "When I'm Gone" reached higher positions on the chart, peaking at No. 3 and No. 4, respectively.
 It has since been certified 2x Platinum in the United States and Platinum in Australia.
 The song was a large success on pop radio, becoming their third No. 1 hit on the Mainstream Top 40 chart and their first No. 1 on the Adult Top 40 chart, where it stayed at the top for 13 weeks.
The FDR Top 40 is one of several music charts that compose the FDR Music Charts.
 It tracks the top performing singles in Ukraine, and is updated on a weekly basis.
 It is similar to the Billboard Hot 100 Chart and Mainstream Top 40 Chart.
Scott Harris Friedman is an American multi-platinum songwriter, producer, and musician best known for his work with Shawn Mendes and co-writing hit song "Don't Let Me Down" by The Chainsmokers featuring Daya, which reached #1 on the US Mainstream Top 40 chart in 2016.
 Harris has 10 songs on Shawn Mendes' sophomore album "Illuminate" including the lead single "Treat You Better" which reached the top 3 at the US Mainstream Top 40 chart, "There's Nothing Holdin' Me Back which hit number 1 at the US Mainstream Top 40 chart and 10 songs on Shawn Mendes' debut album Handwritten which debuted at number 1 on the "Billboard" 200.
 Harris has also written songs for a number of artists, including Jessie J, Melanie Martinez, X Ambassadors, and Tiesto; he co-wrote every song on The Shawn Mendes EP in 2014, which debuted at number five on the "Billboard" 200.
"I Know" is a 1995 song recorded by American R&B singer Dionne Farris.
 It was the first single from her debut album "Wild Seed, Wild Flower" and was released in March 1995.
 It was a hit in her native US (#4 on the "Billboard" Hot 100), and also achieved moderate success in New Zealand and Europe. "
Radio & Records" magazine ranked "I Know" as the number-one most played song on mainstream Top 40/CHR radio stations for 1995 and spent 10 consecutive weeks at number 1 on the Mainstream Top 40 chart (April 1–June 3, 1995).
 Overall, it spent 29 weeks in the Top 40.
 It was nominated for the Grammy Award for Best Female Pop Vocal Performance in 1996.
 The song is currently unavailable for purchase on iTunes or Amazon.com.
Shy Carter (born August 21, 1984), is an American songwriter, record producer, and singer.
 Recently, Shy has written for top acts such as Meghan Trainor, Jason Derulo, Charlie Puth, Faith Hill, Tim McGraw, and Billy Currington.
 He co-wrote Charlie Puth's two-time platinum hit "One Call Away" which hit No. 1 on "Billboard"'s Adult Top 40 chart.
 In 2009, he co-wrote "Someday" with Rob Thomas, which spent over 40 weeks in the Top 5 and became a No. 1 hit on "Billboard"' s Adult Top 40 chart. "
Stuck Like Glue", his collaboration with Sugarland, debuted on the "Billboard" Hot 100 at No. 20 and became the 11th most downloaded country music song of all time.
 He has also been featured on Latin artist Gloria Trevi's #1 song "Habla Blah Blah".
 He's also worked with Faith Hill, Ashanti, and Chingy.
 Carter also wrote a song titled "Bring it Back", which was released on August 7, 2015 and hit the Top 40 of "Billboard"'s Rhythmic chart.
"Stitches" is a song by Canadian singer Shawn Mendes for his debut studio album, "Handwritten" (2015).
 It was initially released to iTunes via Island Records on March 16, 2015 as the first pre-order exclusive track and was subsequently serviced to radio via Republic Records on May 5, 2015 as the album's third official single.
 "Stitches" is the first song by Mendes to appear on a "Billboard" airplay chart, debuting at number 36 on the Mainstream Top 40 chart in June 2015, and eventually reaching number one.
 It became his first top 10 single on the "Billboard" Hot 100, charting at number four.
 "Stitches" also reached the top 10 on the Canadian Hot 100, peaking at number 10.
 It also topped the Slovenian SloTop50 Chart, Scottish Official Charts Company, UK Singles Chart and German Singles Chart and reached the top 5 in Ireland, Australia and New Zealand.
3D is the fourth studio album by American girl group TLC.
 It was released by Arista Records on November 12, 2002, in the United States, seven months after the death of TLC member Lisa "Left Eye" Lopes.
 The album debuted at number six on the "Billboard" 200, and at number four on the Top R&B/Hip-Hop Albums chart, selling 143,000 copies sold in its first week of release and was met with positive reviews.
 The album nearly sold two million in the United States alone.
 "3D" earned TLC two Grammy Award nominations, and the album was certified Platinum by the RIAA in 2002.
 3D produced 4 singles.
 The singles were "Girl Talk", peaking at 3 on the US Hot R&B/Hip-Hop Songs chart; "Hands Up", which peaked at number 7 on the Bubbling Under R&B/Hip-Hop Singles chart and "Damaged", which managed to peak at 19 on the US Mainstream Top 40.
"Sound of Your Heart" is a song recorded by Canadian singer-songwriter Shawn Hook for his third studio album, "Analog Love" (2015).
 It was released through Kreative Soul Entertainment under license to Universal Music Canada on February 17, 2015 as the album's second single.
 Reaching the top 25 on the Canadian Hot 100 and being certified Platinum by Music Canada, it is Hook's most successful single to date.
 The song was re-released internationally in early 2016 through Hollywood Records following Hook signing to the label and has since entered the "Billboard" Mainstream Top 40 chart and reached the top of the magazine's Dance Club Songs chart.
Top 40 Tracks was a chart from "Billboard" magazine, which debuted in the issue dated December 5, 1998, when "Billboard" changed the airplay profile of the pop-heavy U.S. Hot 100 Airplay chart to incorporate more R&B, country, and rock stations to its radio panel.
 To preserve the notion of the former chart, Top 40 Tracks was introduced.
 The Top 40 Tracks was compiled by measuring audience impressions (based on a station's ratings and when a song is played) from Mainstream Top 40, Rhythmic Top 40, and Adult Top 40 radio stations.
The Chainsmokers is an American DJ/production duo consisting of Andrew Taggart and Alex Pall.
 The EDM-pop duo achieved a breakthrough with their 2014 song "#Selfie", which was a top twenty single in several countries.
 Their debut EP, "Bouquet" was released in October 2015 and featured the single "Roses", which reached the top 10 on the US "Billboard" Hot 100. "
Don't Let Me Down" became their first top 5 single there and won the Grammy Award for Best Dance Recording at the 59th awards ceremony, while "Closer" became their first number-one single on the chart.
 They have also won an American Music Award and five iHeartRadio Music Awards.
 The duo's second EP "Collage" was released in November 2016, succeeded by the release of their debut studio album, "Memories...Do Not Open", in April 2017.