Question: What is the name of this song recorded by Barbadian singer Rihanna for her album "Unapologetic", in which she worked with Anthony Mandler on the music video?
Context: Anthony Mandler (born April 18, 1973) is an American film director, music video director, television commercial director and photographer.  As a music video director, his most notable and frequent collaborator is Rihanna.  The two have worked on sixteen music videos together throughout her career, beginning with "Unfaithful" in 2006 and most recently "Diamonds" in 2012.  He has also written and directed music videos for many other prominent artists including the Spice Girls, Jay Z, Beyoncé, Eminem, Usher, Shakira, Taylor Swift, The Killers, Selena Gomez, Justin Bieber, 50 Cent, Ne-Yo, Nicki Minaj, Drake, Snoop Dogg, Lenny Kravitz, Cheryl Cole, M.I.A., Mary J. Blige, fun.  and Lana Del Rey. "Sledgehammer" is a song recorded by Barbadian singer Rihanna.  It was released on June 27, 2016 as a single to promote "Star Trek Beyond".  It plays during the film's closing credits but is not included on the film's soundtrack.  The song was written by Sia Furler (Sia), Robyn Fenty (Rihanna) and Jesse Shatkin.  A music video for the song was released on June 30, 2016, and shows Rihanna performing magical acts on a foreign planet.  The video was shot entirely on IMAX cameras. "Diamonds" is a song recorded by Barbadian singer Rihanna for her seventh studio album, "Unapologetic" (2012).  It was written by Sia Furler together with its producers, Benny Blanco and StarGate.  The song premiered on September 26, 2012, during the "Elvis Duran and the Morning Show" and was digitally released the following day as the lead single from "Unapologetic".  Def Jam Recordings serviced the single to contemporary hit radio in the United States on October 2.  "Diamonds" is a mid-tempo pop, electronic and R&B ballad that features heavy synthesizers, orchestral sounds and electronic rhythms.  The song's lyrics serve as a departure from the themes of unhealthy relationships that were on Rihanna's previous singles and contain a prominent concept of love. "National Anthem" is a song recorded by American singer and songwriter Lana Del Rey for her second studio album, "Born to Die" (2012).  It was released as a single on July 6, 2012, through Interscope Records.  The song serves as the album's fifth single.  The music video for the song premiered on June 27, 2012.  It is directed by Anthony Mandler.  It depicts Del Rey as Marilyn Monroe and Jacqueline Kennedy and ASAP Rocky as John F. Kennedy.  It portrays the assassination of John F. Kennedy.  Critical commentary accompanied the song and video.  Positive reviews noted the song's critical evaluation of lavish lifestyles, saying it fit together with the lyrical structure of the entire album. Barbadian singer Rihanna has released four video albums and appeared in fifty-two music videos, six films, ten television programs, and eight television commercials.  In 2005, Rihanna signed a recording contract with Def Jam Recordings and released her debut single "Pon de Replay", taken from her first studio album "Music of the Sun" (2005).  Like its lyrical theme, the music video for the song was inspired by disco and dance; it was directed by Little X.  Three separate videos were released for "SOS", the lead single from her second studio album "A Girl Like Me" (2006), all of which contained various dance sequences.  The same year, American director Anthony Mandler directed the accompanying music video for the second single "Unfaithful", which featured Rihanna in a dangerous love triangle with her lover and her husband.  "Unfaithful" was Rihanna's first collaboration with Mandler; they later worked together regularly.  Also in 2006, Rihanna played herself in the third installment of the "Bring It On" film series, entitled "". "No Love Allowed" is a song recorded by Barbadian singer Rihanna for her seventh studio album, "Unapologetic" (2012).  The singer co-wrote the track together with Sean "Elijah Blake" Fenton, Alexander Izquierdo, Steve Wyreman and Ernest Wilson, who produced it under his production name No I.D..  Kuk Harrell and Marcos Tovar recorded the song at Record One Studios and Westlake Recording Studios in Los Angeles and Metropolis Studios in London; Harrell also did the vocal production.  "No Love Allowed" is a electro-ragga and reggae song with an instrumentation consisting of a bubbly, dubbed-out groove, Caribbean and dubstep beat and loping drumless rhythms. "Jump" is a song recorded by Barbadian singer Rihanna for her seventh studio album, "Unapologetic" (2012).  It was written by Kevin Cossom, M. B. Williams, StarGate and Chase & Status, with production done by the latter two and Kuk Harrell.  It samples the lyrics of the 1996 single "Pony", performed by Ginuwine.  Its composition and structure received comparisons to not only Justin Timberlake's song "Cry Me a River" and Magnetic Man's "I Need Air", but also to some of Rihanna's previous songs, including "Rude Boy" and "Red Lipstick".  A remix of the song called "Jump (Club Cheval Rap Remix)" by rapper Theophilus London was leaked onto the internet.  "Jump" was serviced to Australian radio on January 24, 2014 as the album's fifth Australian single and seventh overall. "Nobody's Business" is a song recorded by Barbadian singer Rihanna for her seventh studio album "Unapologetic" (2012).  Co-written by Rihanna together with its producers Terius "The-Dream" Nash and Carlos "Los" McKinney, it features guest vocals by American singer Chris Brown.  It is their third collaboration following the domestic violence case that happened between them in 2009.  "Nobody's Business" is a disco-pop and R&B-funk song that mixes Chicago stepping and house styles and features strings, piano, and a four-on-the-floor kick drum.  It contains interpolation of the 1987 single "The Way You Make Me Feel" by Michael Jackson. "What Now" is a song recorded by Barbadian singer Rihanna for her seventh studio album, "Unapologetic" (2012).  It was written by Olivia Waithe, Parker Ighile and Nathan Cassells alongside Rihanna, with production handled by Ighile and Cassells.  A remix collection was released exclusively to Beatport on August 29, 2013 and later via iTunes, Amazon, and Google Play on September 17, 2013.  The single was serviced to US rhythmic radio on September 24, 2013, before impacting mainstream radio on October 1, 2013 as the fifth international single and sixth overall from "Unapologetic".  Another remix collection was released to Beatport on October 29, 2013.  The song is a mid-tempo piano ballad which incorporates sounds which resemble "sonic bombs" during the chorus and "crashing" drums. Unapologetic is the seventh studio album by Barbadian singer Rihanna.  It was released on November 19, 2012, by Def Jam Recordings and SRP Records.  It was recorded between June and November 2012, during promotion of her sixth album, "Talk That Talk" (2011).  As executive producer, Rihanna enlisted previous collaborators The-Dream, David Guetta, Chase & Status, and StarGate to work alongside new collaborators such as Parker Ighile, Mike Will Made-It, and Labrinth.  "Unapologetic" is mainly a pop, dubstep and R&B album that incorporates elements of hip hop, EDM and reggae in its production, similar to the sound of her previous albums "Talk That Talk" and "Rated R" (2009).
Answer: Diamonds