Last Friday Night (T.G.I.F.) single has topped U.S. download and radio charts. The song topped the Billboard Hot 100 on August 17, 2011, making Katy Perry the first female artist ever to have five #1 singles from one album.
BTW, Katy Perry appeared at the 2011 MTV Video Music Awards on August 28, 2011. She was nominated for ten awards, received the most nominations of the ceremony and was the only singer in history to have four different music videos shown on various categories, eventually winning three of those, incluing Video of the Year for "Firework", Best Collaboration and Best Special Effects for "E.T.".
.. "I Kissed a Girl" Katy Perry "Ur So Gay" :) ..



