Viral Videos Lead Up to Katy Perry’s Star-Studded “Last Friday Night” Music Video Premiere Dan Koelsch, June 12, 2011June 12, 2011 Katy Perry debuted the music video today for her new single “Last Friday Night” on Funny or Die. The video has Perry, as 13-year-old “Kathy Beth Terry”, waking up from a crazy party, and the video features cameos from a wide range of celebrities, including Glee castmembers, Kenny G, Rebecca…