Isaac Hanson has praised Katy Perry for her 'Last Friday Night' video. Speaking to Bang Showbiz, Hanson said that the Teenage Dream singer was "totally ridiculous" while filming the promo. He said: ...

Here's our countdown of the 15 best songs of the summer. (Of course, 'Last Friday Night' made the cut.) Here's our countdown of the 15 best songs of the summer. (Of course, 'Last Friday Night' mad… ...

In The Number Ones, I'm reviewing every single #1 single in the history of the Billboard Hot 100, starting with the chart's beginning, in 1958, and working my way up into the present. Book Bonus Beat: ...

Katy Perry has been going viral lately for a variety of reasons. She recently became a NSFW topic of conversation on the internet thanks to Duolingo. Now, her song "Last Friday Night (T.G.I.F.)" is in ...

Katy Perry reteamed with Rebecca Black last night, and their joining forces is looking to last through Lifetimes — as in Perry’s so-named tour. Black, who appeared in Perry’s 2011 video for “Last ...