In a performance that got social media buzzing, Katy Perry and Rebecca Black teamed up for a surprise duet of viral hit "Last ...

Katy Perry reteamed with Rebecca Black last night, and their joining forces is looking to last through Lifetimes - as in ...

Douglas Kiker, a contestant on “American Idol” Season 18 who memorably moved series judge Katy Perry to tears with his ...

Rebecca Black will be joining Katy Perry on her Lifetimes Tour starting from May, the singers have confirmed. It comes after ...

Lady Gaga and Katy Perry attend the Academy Museum of Motion Pictures: Opening Gala honoring Haile Gerima and Sophia Loren, ...

American Idol showrunner Megan Michaels Wolflick has shared her thoughts on Carrie Underwood's controversial performance at ...

Katy Perry is dealing with major career stress as a ton of seats remain unsold for her make or break tour – but she’s vowing ...

My S.O. will probably tell you that I randomly belt out, "Baby you're a firework" several times a day because I can't get ...

"Katy was a huge cornerstone of 'American Idol' as far as a presence and a personality, so you can never replace her -- It's ...

When Helena Moreno was presenting the proclamation, the famously cheeky singer asked if she needed to flash city officials and the audience to seal the deal.

Katy Perry is facing an uphill battle with her upcoming Lifetimes tour, as reports indicate that thousands of tickets remain ...