Ok, for real, Katy Perry is HILARIOUS. Featured in her video for “Last Friday Night (T.G.I.F.) is Rebecca Black, Hanson, Kenny G, Darren Criss, and Kevin McHale (Blaine and Arty) from Glee. The video is hilarious, it features a nerdy Kathy Beth Terry haha waking up from a crazy night. Check it out! Enjoy.