A decade and a half after its release, Katy Perry's "Last Friday Night (T.G.I.F.)" debuts on multiple Billboard charts, ...
Katy Perry's "The One That Got Away" becomes her highest-rising hit on the U.K.'s streaming chart in half a decade — more ...
Zara Larsson and Katy Perry share their reactions to watching Justin Bieber scroll through YouTube in the middle of his Coachella set.
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