Add Yahoo as a preferred source to see more of our stories on Google. Katy Perry, Rebecca Black - Credit: Samir Hussein/WireImage; Lorne Thomson/Redferns Katy Perry reteamed with Rebecca Black last ...

Add Yahoo as a preferred source to see more of our stories on Google. (Photo Credit: DUTCH/Bauer-Griffin/GC Images via Getty Images) Katy Perry has impressed her fans once again with her new strapless ...

From a flying butterfly to a crowd-surfing shark and a chorus of fans voting via QR code to hear a ballad about heartbreak —welcome to Lifetimes, Katy Perry’s cosmic-coated tour de force that lit up ...

Of all Katy Perry's music videos, it's an undeniable universal truth that the video for her 2011 single ‘Last Friday Night (T.G.I.F.)’ is the greatest. Don't even try to convince us otherwise. From ...

Katy Perry returned to the stage in a look that mixed vintage glamor with rockstar romance. She shared photos and videos from ...

Rebecca Black, whose music video for the song “Friday” gained viral fame for all the wrong reasons when she was just 13, is getting the last laugh. Black announced Sunday, March 9 on her Instagram ...

Katy Perry reteamed with Rebecca Black last night, and their joining forces is looking to last through Lifetimes - as in Perry's so-named tour. Black, who appeared in Perry's 2011 video for "Last ...