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

Another Katy Perry single, 2008’s “Thinking of You,” has been generating buzz on TikTok.

Katy Perry tops this bill, but the real focus should be on Carly Rae Jepsen, the reigning cool queen of pop. After all, Perry is sooooo 2010-to-2013, and her new album, Witness—its painfully “woke” ...