Katy Perry vs. Lady Gaga - Last Friday Night (T.G.I.F.) vs. The Edge Of Glory (Mashup Mix)

NEW CHANNEL FOR MORE MASHUPS: http://www.youtube.com/user/TAMM70099 Copyright Infringement NOT intended. For entertainment purposes only. "Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use." Lady Gaga - The Edge Of Glory (C) 2011 Streamline/Kon Live/Interscope and Universal Music Group. A Mashup Mix of Katy Perry - Last Friday Night (T.G.I.F.) acapella and Lady Gaga - The Edge Of Glory instrumental (pitch altered)