Katy Perry’s return to the Belgium stage will have to wait a little longer after her Werchter concert was canceled on Friday.

A decade and a half after its release, Katy Perry's "Last Friday Night (T.G.I.F.)" debuts on multiple Billboard charts, becoming a global hit (again).

Add Yahoo as a preferred source to see more of our stories on Google. (NewsNation) — A 15-year-old Katy Perry song has made its way back on the Billboard charts. “Last Friday Night (T.G.I.F.),” off ...

Katy Perry was spotted watching Team USA vs. Paraguay compete on Friday, June 12, with her boyfriend, Justin Trudeau ...

Rema, Tyla, Future and Dan + Shay also performed ahead of the U.S. Men's National Team's opening win against Paraguay.

Pop star Katy Perry brings back famous Simlish version of 'Last Friday Night' at concert During Katy Perry’s Lifetimes Tour stop in Toronto a fan had a special request, the Simlish version of “Last ...

Happy New Music Friday! The weekend is here, which means more streaming, new playlists and the best that music has to offer -- and ET has you covered for everything in between. Culture's Biggest Night ...