Katy Perry went all out for her new music video for "Last Friday Night (T.G.I.F)."
The singer plays a character named Kathy Beth Terry who attends a party with "Friday" viral video star Rebecca Black. Black, known for the viral "Friday" YouTube music video, which has received over 160 million views since debuting 3 months ago.
Perry, 26, covered Black's "Friday" at a recent concert in Melbourne, Australia, declaring that she was so glad that "someone wrote a song about 'Friday.'"
Other cameos in the video include "Glee" stars Darren Criss and Kevin McHale, musicians Kenny G and the Hanson brothers, as well as 80s stars Debbie Gibson and Corey Feldman.
The song is the fifth single from Perry's hit album "Teenage Dream." Check out the video below and vote in our poll!