The Best Of NOW THAT"S WHAT I CALL MUSIC! 10TH anniversary CD is the milestone release of the hugely successful NOW That"s What I Call Music! series, which have collectively scanned over 70-million units in the U.S., compiling the most popular tracks from the last 10 years. Get the Party started with Pink, Katy Perry, Jay-Z, Rihanna ,Kanye West , Justin Timberlake, Lil Wayne, Static Major, Ja Rule, Jennifer Lopez, Wyclef Jean, Shakira, Amy Winehouse,Mariah Carey, Christina Aguilera, Alicia Keys, Backstreet Boys, Avril Lavigne, Lenny Kravitz, Maroon 5, Nickelback ,The Fray and U2.