Buzz Bites (5/16/13): Watch Kanye West Perform New Songs Inside A Pyramid

Kanye West debuts new songs inside a pyramid (!), Pharrell Williams joins Rihanna's "Styled To Rock" + Demi Lovato shares a new tattoo to celebrate "Demi"'s release in today's Buzz Bites.

Kanye West debuted new songs last night from inside a pyramid!

+ Kanye West made a surprise appearance at Adult Swim’s Upfront event last night at New York’s Roseland Ballroom. He premiered new songs from inside a translucent pyramid… because KANYE. Watch videos from his set. (Pitchfork)

+ Rihanna‘s “Styled To Rock” fashion competition series is slated to air this year via Style Network, and Pharrell Williams will also be joining the show to serve as a mentor for the contestants. (Billboard)

+ Demi Lovato got some new ink to celebrate the release of Demi. Check out the tattoo, which bears the name of her new song “Warrior”: It reads “now I’m a warrior” on her back. (E!)

+ Watch Carly Rae Jepsen perform her new single, “Take A Picture,” during last night’s “American Idol” penultimate episode. Adam Lambert will take the stage for tonight’s finale. (Just Jared Jr.)

+ Backstreet Boys are prepping a new album called In A World Like This, which is due June 30, and they’ve also announced summer tour dates. The guys kick things off in Chicago on Aug. 2, and the tour wraps on Sept. 8 in San Francisco. (Billboard)

+ Chris Brown launched his own site and mobile app called “Chris Brown Channel.” His first video broadcast was yesterday. “Now all you guys can see me at all times of the day, keep up with what I’m doing… really,” he said in the clip. (MTV News)

Photo credit: Getty Images

Check out everything that went on at Hangout Fest 2013, including interviews, performances and getting chill from the Shores at Hangout.MTV.com.