Katy Perry's 5th Number One Makes Pop Chart History

Katy Perry has made history after shooting to the top of the U.S. pop songs charts with the fifth single from Teenage Dream. The singer has become the first artist to have five number ones from t...

Source: http://www.starpulse.com/news/index.php/2011/08/03/katy_perrys_5th_number_one_makes_pop_c