Katy Perry - "Last Friday Night (T.G.I.F.)" official music video teaser - YouTube

https://www.youtube.com/watch?v=Ghe52kEPpAQ

You're invited to the party of the summer! Watch the official video here: http://youtu.be/KlyXNRrsk4A Kathy Beth Terry has no friends! LIKE Kathy Beth Terry ...