Question: The song Skin which was included in Rihanna's Loud Tour is by who?

Context paragraphs:
Man Down (song): "Man Down" is a song by Barbadian singer Rihanna from her fifth studio album, "Loud" (2010).  Singer Shontelle and production duo Rock City wrote the song with its main producer, Sham.  They wrote it during a writing camp, in Los Angeles of March 2010, held by Rihanna's record label to gather compositions for possible inclusion on the then-untitled album.  Rock City were inspired by Bob Marley's 1973 song "I Shot the Sheriff" and set out to create a song which embodied the same feel, but from a female perspective.  "Man Down" is a reggae murder ballad which incorporates elements of ragga and electronic music.  Lyrically, Rihanna is a fugitive after she shoots a man, an action she later regrets.  Several critics singled out "Man Down" as "Loud"' s highlight, while others commented on her prominent West Indian accent and vocal agility.

Fading (song): "Fading" is a song by Barbadian recording artist Rihanna from her fifth studio album, "Loud" (2010).  The song was written by Jamal Jones and Ester Dean, whilst production of the song was completed by Jones under his production name, Polow da Don.  Musically, the song samples Irish instrumentalist and singer-songwriter Enya' s "One by One", whilst lyrically, the song is about leaving a man in a relationship.  After "Loud" had strong digital download sales in the United Kingdom, "Fading" charted at number 187 on that country's singles chart in November 2010.  The song received generally positive reviews from music critics, who praised da Don's production, but one critic criticized Rihanna for copying herself and failing to create something different.  Some critics also compared it to one of Rihanna's previous singles, "Take A Bow".  The song has also been performed on select dates of the Loud Tour (2011).

Loud Tour: The Loud Tour was the fourth overall and third world concert tour by Barbadian recording artist Rihanna.  Performing in over twenty countries in the Americas and Europe, the tour was launched in support of Rihanna's fifth studio album "Loud" (2010) but eventually supported her following album "Talk that Talk" as it was released during the tour, in November 2011.  Critics acclaimed the show for its liveliness and higher caliber of quality when compared to Rihanna's previous tours.  The Loud Tour was a large commercial success, experiencing demand for an extension of shows in the United Kingdom due to popularity.  In London, Rihanna played a record breaking 10 dates at The O2 Arena.  The tour ultimately grossed an estimated value of US$90 million from 98 reported shows and a total audience of 1,200,800.  The Loud Tour became the 7th highest grossing tour of 2011.

Live &amp; Loud Tour: The Live & Loud Tour was the tenth headlining tour by American country music trio Rascal Flatts.  Presented by Farmers Insurance, it began on March 30, 2013, and ended on October 10.

Complicated (Rihanna song): "Complicated" is a song by Barbadian recording artist Rihanna from her fifth studio album "Loud" (2010).  It was written and produced by Tricky Stewart and Ester Dean.  "Complicated" is a dance-pop, hip hop and trance music song, which also displays elements of pop, dance-pop and R&B.  It contains lyrical content explaining how two people in a relationship can find one another complicated at times.  The song was acclaimed by critics, as the majority of reviewers concluded that it was one of the best tracks to be included on "Loud".  Reviewers also praised Rihanna's vocal performance in the song.  Upon the release of the album in November 2010, the song charted at number 50 on the South Korea Gaon International Chart.

Loud Tour Live at the O2: Loud Tour Live at the O2 is the second live long-form video by Barbadian singer Rihanna.  It was released on December 13, 2012 by SRP and Def Jam Recordings.  The DVD and Blu-ray Disc release feature her concert at The O2 Arena in London, England as part of the Loud Tour (2011), in support of her fifth studio album "Loud" (2010).  Directed by Nick Wickham and produced by Ciarra Pardo and Emer Patten, it was filmed during the last three shows in London.

Live Out Loud Tour: The Live Out Loud Tour was a concert tour by American recording artist Prince and 3rdeyegirl which took place in 2013.  The tour reached North America and Europe.  Announced in January, the concerts were so highly anticipated.  The tour is composed of Prince performing with his new band 3rdeyegirl.  For some shows, The New Power Generation would also join them on stage.  The name of the tour comes from the song "Live Out Loud" by Prince and 3rdeyegirl.

Skin (Rihanna song): "Skin" is a song by Barbadian recording artist Rihanna from her fifth studio album, "Loud" (2010).  The song was written by Kenneth Coby and Ursula Yancy, with production helmed by Soundz.  Musically, "Skin" is a R&B song that contains influences from pop, dance-pop and dubstep genres, whilst lyrically, the song is about being in a relationship with someone and only wanting to feel their skin close to the protagonists.  "Skin" received generally positive reviews from critics, as part of their overall review of "Loud", praising "Skins compositions as well as Rihanna's sensual vocal performance.  The song was included on the set list of the Loud Tour (2011), where Rihanna retrieves a man or woman from the audience near the end of the song, and performs a lap-dance whilst on an elevated platform.  "Skin" was also used in Rihanna's advertisement campaign for Armani Jeans.

Only Girl (In the World): "Only Girl (In the World)" is a song by Barbadian singer Rihanna from her fifth album, "Loud" (2010).  The album's lead single, it was released on September 10.  Crystal Johnson wrote the song in collaboration with producers Stargate and Sandy Vee.  Rihanna contacted Stargate before "Loud"'s production and asked them to create lively, uptempo music.  "Only Girl (In the World)" was the first song composed for the album, and the singer decided to include it on the track list before she recorded her vocals.  Backed by strong bass and synthesizer, it is a eurodance song that incorporates elements of hi-NRG, rave and R&B in its composition.  In its lyrics, Rihanna demands physical attention from her lover.

Talk That Talk: Talk That Talk is the sixth studio album by Barbadian singer Rihanna, released on November 18, 2011, by Def Jam Recordings and SRP Records.  It was recorded while traveling for the Loud Tour between February and November 2011, and was originally planned to be a reissue of her previous studio album "Loud" (2010).  As executive producer, Rihanna enlisted a wide range of producers including Alex da Kid, Calvin Harris, Chase & Status, No I.D., and StarGate to achieve her desired sound.  Following in the same vein as "Loud", "Talk That Talk" is a dance-oriented pop/R&B crossover album that incorporates elements of hip hop, dubstep, electronic and house music.  The album also continues to have subtle dancehall genres, whilst its lyrical content and themes revolve around a nihilist, romantic and lascivious lover.

Supporting paragraphs: Skin (Rihanna song) Loud Tour
Answer: Barbadian