KATY PERRY TO TOP
Written by ester arrigoni on January 18, 2011
“California Gurls” by Katy Perry is the best-selling digital song of 2010. The single is included on the album ‘Firework’, for four weeks in the top ten Billboard Hot 100. The American pop star who has also won the People’s Choice Awards as “Favorite Female Artist” and “Favorite Online Sensation” will be in concert in Milan on Feb. 23, already sold out.