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 ... her Salvation tour stop at El Rey Theatre in Los Angeles last night ...

Carrie Underwood's debut as a judge on American Idol has drawn in more viewers than Katy Perry's final season premiere, by ...

Doug Kiker, the Alabama native known as the "Singing Garbage Man" from American Idol who made Katy Perry cry, has passed away ...

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

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

Katy Perry is re-releasing her 2009 acoustic EP, 'Live At MTV Unplugged,' on lavender-colored vinyl later this year.

Doug Kiker, a contestant on 'American Idol' Season 18 who moved Katy Perry to tears in his audition, has died. He was 32.

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 ...

However, Katy Perry made around $25 million per season ... “Depending on Carrie’s performance and how she’s responded to by ...

Katy Perry reteamed with Rebecca Black last night ... El Rey Theatre in Los Angeles Saturday when Perry joined her for a performance of that song. Perry also got down on one knee to make a ...