Katy Perry's New Music Video 'TGIF' Featuring 'Glee' Stars Kevin McHale and Darren Criss Blows Up Online (Watch the Video)

Update: Perry's video has officially blown up on YouTube, garnering over 9.5 million view since we posted the article below two days ago.

In case you missed the video - check it out below, and make sure to catch Debbie Gibson and Corey Feldman, splipping in when Friday turns to a very hungover Saturday.

Katy Perry debuted her new music video "Last Friday Night (TGIF)" today, along with her new nerdy persona "Katy Beth Terry." And boy, is this one crazy video.

Not only is Perry decked out in some ridiculous outfits, but the video features cameos from a strange assortment of stars: Kevin McHale of "Glee" shows up, as does internet star Rebecca Black and...smooth jazz legend Kenny G? Seriously?

Yes, seriously. The video follows the nerdy Katy Beth Terry as she wanders over to a party next door, where she is greeted by YouTube sensation Rebecca Black (only fitting since both their songs are about Friday). Katy is spotted by Kevin McHale, who is dressed up even nerdier than he often is as Artie in "Glee," and who apparently has a major fantasy crush on Katy. Like, with swords and dragons and stuff.

Black then gives Katy a makeover, which includes a massive perm, which catches the eye of a jock who gets a little grabby with Katy. Kevin McHale defends her honor, but doesn't seem to get any recognition for it. What gives?

Oh, and also Kenny G plays the sax. Seriously.

Check out the video below. How do you think it compares to her other ones?