In a performance that got social media buzzing, Katy Perry and Rebecca Black teamed up for a surprise duet of viral hit "Last Friday Night (T.G.I.F.)" at Rebecca Black's Los Angeles concert last night ...

Katy Perry recently addressed the viral conspiracy theory claiming she's child pageant star JonBenét Ramsey, who passed away ...

Katy Perry surprises Rebecca Black with an on-stage tour invite for 'The Lifetimes Tour.' Fans can expect sci-fi visuals, aerial stunts, and deep-cut setlists. The tour kicks off May 7.

Katy Perry’s 2011 song "Last Friday Night (T.G.I.F)" from her third studio album, Teenage Dream, has debuted on US Spotify.

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 ...

"I thought it was a good time to reunite them after 10 years of not working together," Chris Anokute said of reuniting Perry ...

Rebecca, meanwhile, donned an equally short leopard print mini dress with a flared skirt. She wore black heeled knee-high ...

KATY Perry is experiencing “disappointing” ticket sales for tour dates in select cities, The U.S. Sun has learned. Katy, 40, ...

Katy Perry reteamed with Rebecca Black last night ... Black, who appeared in Perry’s 2011 video for “Last Friday Night (T.G.I.F.),” was at her Salvation tour stop at El Rey Theatre in ...