Favorite Song of the Summer

This is totally of topic, but I was listening to a local radio station and they posed a good music question. Now that Labor Day is past us and it is the Unofficial end of Summer what song was your favorite of Summer 2011 ?? The top three songs the show suggested were Katy Perry: Last Friday Night (T.G.I.F); LMFAO: Party Rock Anthem; PitBull: Give Me Everything . Now, we are in Florida so there tends to be a lot of dance music on our radio stations so depending on what part of the country you live in you could have a totally different list of songs. What is your favorite song of the summer of 2011??