Music News Katy Perry's 'California Gurls' tops summer singles chart, Eminem next 09/09/2010 Katy Perry's "California Gurls" featuring Snoop Dogg tops Billboard's Songs of the Summer 2010 survey, it was announced Thursday. Read More RELATED NEWS Jimmy Fallon's 'The Tonight Show' dropping to only four nights a weekAshley Tisdale announces birth of her second childSelena Gomez is a billionaire TAGS: Katy Perry Hayley Williams Usher Bruno Mars Taio Cruz Eminem Mike Posner Rihanna Snoop Dogg Pitbull Enrique Iglesias
