Katy Perry teamed up with Rebecca Black to perform 'Last Friday Night (T.G.I.F.)' and invited her on the Lifetimes Tour.

Katy Perry was raked ... revive her struggling tour. In a skit released this week, Katy drops by Rebecca's dressing room to give her the honor of joining in on her new Lifetimes Tour.

Katy Perry faces challenges with ticket sales for her Lifetimes tour and seeks advice from Taylor Swift, whose Eras Tour is a major success. Perry aims to learn Swift's marketing strategies and ...

Katy Perry has tapped iconic "Friday" singer Rebecca Black to join her in her "Lifetimes" world tour! On Instagram, the pair shared a skit showing Rebecca with fake, exaggeratedly large breasts.

Katy Perry "proposed" to Rebecca Black to invite her to support her on 'The Lifetimes Tour'. The 'Firework' hitmaker was a surprise guest at the 'Friday' singer's concert at the El Rey Theatre in ...

KATY Perry has asked Taylor Swift to help save her struggling Lifetimes tour. As The U.S. Sun exclusively reported, thousands of tickets remain unsold for Katy's upcoming concert dates.

Katy Perry is reportedly turning to her former rival, Taylor Swift, for advice as she faces challenges with slow ticket sales for her upcoming Lifetimes tour. Inspired by the monumental success of ...