What song by Rhianna is on the compilation album Now That's What I Call Music! 38?
"S&M"
Title: Holidae In
Passage: "Holidae In" is a song by American rapper Chingy.  It's the second single off his debut album "Jackpot" (2003).  The song features rappers Ludacris and Snoop Dogg.  The song peaked at number 3 on the "Billboard" Hot 100, Chingy's second consecutive top 5 hit on that chart.  It also reached number 2 on both the Hot R&B/Hip-Hop Songs and Hot Rap Songs charts and reached the top 40 in Australia, New Zealand, Canada and the UK.  Jeremy Rall created a music video for the single, featuring all three artists at a motel, that was inspired by Tupac Shakur's 1995 single "Temptations".  The radio version of the song was featured on the 2004 compilation album "Now That's What I Call Music!  15".
Title: S&amp;M (song)
Passage: "S&M" is a song by Barbadian singer Rihanna from her fifth studio album, "Loud" (2010).  The song was released on January 21, 2011, as the fourth single from the album.  The American songwriter Ester Dean wrote "S&M" in collaboration with the producers Stargate and Sandy Vee.  Backed by bass beats, a keyboard and guitars, it is an uptempo hi-NRG-Eurodance track with lyrics that revolve around sexual intercourse, sadomasochism, bondage, and fetishes.
Title: Now That's What I Call Music! 38 (U.S. series)
Passage: Now That's What I Call Music!  38 was released on May 3, 2011.  The album is the 38th edition of the "Now! " series in the United States.  The album features six tracks that reached number one on the "Billboard" Hot 100: "Born This Way", "S&M", "Hold It Against Me", "Grenade", "E.T." and "Rolling in the Deep".
Now That's What I Call Music! 38 (U.S. series) S&amp;M (song)