Katy Perry – Last Friday Night (T.G.I.F.) [music video] from isstan on Vimeo.

Katy Perry has released the official music video for her new single “Last Friday Night (T.G.I.F.)” and it is chock full o’ celebrities in cameo appearances. You can spot Rebecca Black of “Friday” fame, Kevin McHale from “Glee” and even saxophone aficionado Kenny G.

“Last Friday Night” is the fifth single off Katy’s 2010 album “Teenage Dream.” The first four (“California Gurls,” “Teenage Dream” “Firework” and “E.T”) have all gone straight to no. 1 on the charts and gone at least 3x Platinum, so we would expect no less of “Last Friday Night.”

The video was directed by Danny Lockwood and Marc Klasfeld. Klasfeld is also the genius behind such videos as Alien Ant Farm’s “Smooth Criminal,” Nelly’s “Country Grammar,” Orianthi’s “According to You” and Jay-Z’s “Girls, Girls, Girls.”

What do you think? Love “Last Friday Night”?