As of this week, Katy Perry's hit single "E.T." tops the 5 million mark in digital sales, making it her fourth 5-million-seller behind "Firework," "California Gurls," and "Hot N Cold." She stands as the only artist EVER to accomplish this feat, with Lady GaGa hot on her heels with three singles and the Black Eyed Peas and Flo Rida, both with two each.
Congrats to Katy! Keep on breakin' those records.