Buzz Bites (4/12/13): Unveils The Star-Studded '#Willpower' Track List unveils "#willpower"'s star-studded track list, watch Kelly Clarkson perform "People Like Us" and gush with Mariah Carey + grab Cassie's "RockaByeBaby" mixtape in today's Buzz Bites. has revealed the track listing for "#Willpower."

+ released the track list for his forthcoming solo album, #Willpower (also, props for adding a hashtag). The 18-song set features guest collabs with Britney Spears, Justin Bieber, Miley Cyrus, Chris Brown, and more. The album streets April 23. (Rap-Up)

+ Kelly Clarkson returned to her "American Idol" roots at last night's results show. See her neon-splashed performance of "People Like Us," and watch the adorbz lovefest between Kelly and Mariah Carey. (Just Jared)

+ Grab Cassie's new free mixtape, RockaByeBaby. Rick RossPusha-TToo ShortWiz Khalifa, Meek Mill, and more appear on the 13-song mix. (Pitchfork)

+ Watch Taylor Swift's commercial for Diet Coke, which features her working out the lyrics to "22." As the ad progresses, people sing along to Taylor's catchy lyrics, whether they're driving or cooking. (MTV News)

+ 2 Chainz will showcase his acting chops for an upcoming episode of "Law & Order: SVU." Check out photos from the set, where he's hanging with Ice-T and Mariska Hargitay. This isn't his first TV role -- he made his acting debut during an episode of "2 Broke Girls." (RapFix)

+ Listen to Psy's new single, "Gentleman." Like his smash "Gangnam Style," it mixes Korean and English lyrics wrapped in beat-laden electro-pop. (MTV News)

Photo credit: Interscope Records