Question: Who sang the song "SOS" on an album released on April 10, 2006? 
Context: Live – One Last Time is a live album released by Christian gospel quartet The Clark Sisters.  The concert was recorded on July 8, 2006.  The album was produced by EMI Gospel and released on April 10, 2007.  The album won three Grammys. It'll End in Tears is the first album released by 4AD collective This Mortal Coil, an umbrella title for a loose grouping of guest musicians and vocalists brought together by label boss Ivo Watts-Russell.  The album was released on 1 October 1984, and reached #38 on the UK Albums Chart.  It features many of the artists on the 4AD roster at the time, including Cocteau Twins, Colourbox, and Dead Can Dance; as well as key post-punk figure Howard Devoto, who sang "Holocaust", one of two covers of songs from the "Third/Sister Lovers" album by Big Star.  The other Alex Chilton-penned track, album opener "Kangaroo", was released as a single to promote the album.  Two key songs were performed by Elizabeth Fraser of Cocteau Twins, including Tim Buckley's "Song to the Siren", which reached #66 on the UK Charts when released as This Mortal Coil's debut single a year before the album.  The song remained on the UK Indie Chart for almost two years.  Fraser also performed on "Another Day" by Roy Harper.  4AD would go on to release two further albums under the name of This Mortal Coil: "Filigree & Shadow" (1986) and "Blood" (1991). A Girl like Me is the second studio album by Barbadian singer Rihanna.  It was released on April 10, 2006 by Def Jam Recordings.  For the production of the album, Rihanna worked with Evan Rogers, Carl Sturken, StarGate, J. R. Rotem and label-mate Ne-Yo, who wrote the album's second single.  "A Girl like Me" is a pop, reggae and R&B album influenced by Rihanna's Caribbean roots.  The album also incorporates elements of dancehall and rock, as well as ballads, which music critics were ambivalent towards. Makria Sou Den Iparho (Greek: "Μακριά Σου Δεν Υπάρχω"; English: I Don't Exist Away From You ) is the third full-length album released by popular Greek singer, Kelly Kelekidou.  It was released in Greece on April 10, 2008 by Sony BMG Greece.  The album contains the three songs "Se Vgazo Akiro", "Gia Kapia Kseni", and "Se Thelo Me Trela" from Kelekidou's golden CD single "Se Thelo Me Trela". Kermit Unpigged is a music and comedy record released by The Jim Henson Company through BMG Kidz in 1994, and the last album released by Jim Henson Records.  The record’s title is a clear parody of the MTV series “MTV Unplugged”, and the cover is a parody of Eric Clapton's "Unplugged" album cover as well.  The album consisted of Kermit and the other Muppets getting lost at a recording studio and encountering celebrities including Linda Ronstadt, with whom Kermit sang “All I Have to Do is Dream”, Vince Gill who sang “Daydream” with Kermit, Jimmy Buffett who sang “Mr. Spaceman” with Gonzo, and Ozzy Osbourne with whom Miss Piggy sang “Born to be Wild.”  The album ends with all The Muppets meeting back up and singing the Beatles song “All Together Now.” Rata Blanca VII is a Rata Blanca album released in 1997.  Recorded at El Pie Studios, Buenos Aires, between April 10 and May 30, 1997.  It is the band's last album before their separation.  The album featuring a young Gabriel Marian on vocals is a very different from the rest of the discography, and heavily influenced by modern metal of the era.  The album artwork was designed by Renata Schussheim. "SOS" is a song by Barbadian singer Rihanna from her second studio album "A Girl like Me" (2006).  It was written by Jonathan "J.R." Rotem, E. Kidd Bogart and Ed Cobb, with production was handled by Rotem, Carl Sturken and Evan Rogers.  It was released on February 14, 2006, as the lead single from the album.  "SOS" is a dance-pop song which samples Soft Cell's 1981 recording of "Tainted Love", a song written by Cobb in 1965.  Critical reception of "SOS" was generally positive, with the majority of music critics praising the inclusion of the "Tainted Love" sample.  Some critics compared "SOS" to Rihanna's debut single, "Pon de Replay" ("Music of the Sun", 2005). "SOS" was the third single from Swedish pop group ABBA's self-titled 1975 album, their third for Polar Music and their second for Epic and Atlantic.  It was released with "Man in the Middle" as the B-side.  Agnetha Fältskog, who sang lead, recorded the song in Swedish on her 1975 solo album "Elva kvinnor i ett hus".  "SOS" was ABBA's first major worldwide hit since "Waterloo". Space Vacation is the seventh album released by New York City based Japanese punk group Peelander-Z, released on April 10, 2012.  This album strays away from the band's Ramones influenced punk rock, towards a new wave sound prominently featuring keyboards, similar to Devo.  Peelander-Z toured throughout 2012 to promote the album, with advanced copies of it for sale at the shows. 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 "".
Answer: Rihanna