Question: During the promotion of her sixth album, "Talk That Talk," Which singer song writer recorded the song, "Half of Me"?
Context: "We Found Love" is a song recorded by Barbadian singer Rihanna from her sixth studio album, "Talk That Talk" (2011).  It was written and produced by, and features Scottish DJ Calvin Harris; the song was also featured on his third album "18 Months" (2012).  "We Found Love" premiered on September 22, 2011, on the Capital FM radio station in the United Kingdom, and was made available to download on the same day as the lead single from "Talk That Talk".  "We Found Love" is an uptempo electro house song, with elements of techno and Europop.  The song's lyrics speak of a couple who "found love in a hopeless place". Internet Co., Ltd. (株式会社インターネット , Kabushikigaisha Intānetto ) , or Internet, is a software company based in Osaka, Japan.  It is best known for the music sequencer Singer Song Writer and Niconico Movie Maker for Nico Nico Douga, a video sharing website.  It also develops singing synthesizers using the Vocaloid 4 engine developed by Yamaha Corporation.  In 2014, they were the second leading company in sound related software in Japan, boasting a 14.0% share of the market. The Del Couch Music Education Foundation offers children free access to music education, recording equipment and mentorship.  The foundation is located inside the Manatee School for the Arts in Palmetto, Florida, where the program founder and director Del Couch conducts four levels of classroom training in music recording and production and providing performance opportunities through events and mentorships.  Alumni of the program include 2014 fifth-place American Idol finalist, Sam Woolf, and singer-songwriter recording artist Matt Walden, Carolina Opry star Colton Cason , singer song writer Taylor Zebracki , and more. Lalomie (Lomie) Washburn was a R&B Singer Song Writer. Marc Alexander Hunter (7 September 195317 July 1998) was a New Zealand rock and pop singer, song writer and record producer.  He was the lead vocalist of Dragon (1973–79, 1982–89, 1995–97), a band formed by his older brother, Todd Hunter, in Auckland in 1972.  They relocated to Sydney in May 1975.  He was also a member of the Party Boys (1985).  For his solo career he issued five studio albums, "Fiji Bitter" (November 1979), "Big City Talk" (August 1981), "Communication" (September 1985), "Night and Day" (August 1990) and "Talk to Strangers" (late 1994).  During the 1970s Hunter had developed heroin and alcohol addictions; he was recklessly outspoken and volatile on-stage: in November 1978 during the band's United States tour, supporting Johnny Winter, they performed in Dallas, Texas, where "he made some general stage observations about redneck buddies, illegal oral sex and pick-up trucks" and called the audience members, "faggots".  Upon return to Australia, in February 1979, he was fired from the group by his brother, Todd. "Talk That Talk" is a song recorded by Barbadian singer Rihanna for her 2011 studio album of the same name.  It features a rap verse by American rapper Jay-Z, who had previously collaborated with Rihanna on her song "Umbrella" in 2007 and "Run This Town" in 2009.  The song was written by Jay-Z, Ester Dean, Christopher Wallace, Anthony Best, Sean Combs, and Chucky Thompson together with the Norwegian production duo StarGate.  Def Jam Recordings serviced the track to urban radio in the United States on January 17, 2012, as the third single from "Talk That Talk".  It was released in France as a CD single on March 26.  "Talk That Talk" is a hip hop song with R&B beats, rough drums and unrefined synths, and has a similar style to Rihanna's 2010 single "Rude Boy". Masaki Kyomoto (京本 政樹 , Kyōmoto Masaki , January 21, 1959 –) is a Japanese actor, singer song writer, and guitarist.  He has appeared in films and television series including "Legend of the Eight Samurai", "Sukeban Deka", "Kamen Rider Black", "" (aka "Ultraman Great"), "Cutie Honey", "Chage and Aska", "Ōedo Sōsamō", "Mito Kōmon", "Anmitsu Hime", "Food Fight", "Ultraman Tiga", "Ultraman Dyna", "Ii Hito", "GARO", 'Tenchu:Yamino Shiokinin" and most recently "81diver".  He has performed on the soundtracks to "GARO" and "", performing the first two ending themes for the former, and producing GARO Project's performances of the final two ending themes for the series and the ending theme for the special.  Masaki got a role in a buster film "Legend of the Eight Samurai" as Inuzuka Shino and it became a sensation that lead to Masaki's break out role "Ryu" on a popular Japanese period piece samurai drama series "Hisattsu shigotonin V" where he played Japanese obi-belt maker who is ex-ninja turned to be an assassin (shigotonin) to kill bad guys.  He became a big star by that role and since then has appeared in numerous period piece drama series.  He often plays a role much younger than his actual age due to youthful appearance.  His picture with his son Taiga Kyomoto (Johnny's Jr.) went viral in Asia and many thought he is Taiga's older brother instead of father.  He is an established musician as well produced sound track for TV shows and music for himself and other singers. "Half of Me" is a song recorded by Barbadian recording artist Rihanna for her seventh studio album "Unapologetic" (2012).  It was written by Emeli Sandé, Naughty Boy and Stargate, with production done by the latter two.  It is a chamber pop and R&B song that sees Rihanna deliver vocals in an "experimental" fashion.  Its lyrics have been described as a "personal essay", with lyrics that discuss Rihanna's unrepentant attitude in letting people into her life.  She references Oprah Winfrey in the line "You saw me on the television".  The song garnered positive reviews from music critics, some of whom felt that it is "heartfelt" and "psychedelic".  Upon the release of "Unapologetic", the song charted in Canada, France, Ireland, Switzerland and the United Kingdom.  It debuted at number 10 on the UK R&B Chart. "Going Crazy" (Korean: "Michin Geoni" (미친거니)) is a song recorded by South Korean singer Song Ji-eun.  It is released as a digital single on March 3, 2011 through TS Entertainment.  The song's inspiration came from the producers who have felt they needed to showcase a darker side of Jieun, thus coming up with the idea of a stalking relationship.  The song features B.A.P's Bang Yong-guk, who sings the rap parts of the song.  The song's lyrics tells of a fallen relationship in which the protagonist couldn't stand the stalking of her obsessed ex-lover. 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: Rihanna