Lady Gaga Tops Second Week

(Photo: Splash News Online) Lady GaGa spends a second week at number 1.

'Just Dance', with Colby O'Donis, sold over 213,000 downloads in the United States. The single has sold 2.14 million downloads since its release last spring.

'Single Ladies (Put a Ring on It)' from Beyonce is number 2 while Kanye West's 'Heartless' jumps is third. T.I.'s 'Live Your Life' is fourth and Taylor Swift's 'Love Story' is number 5.

For you Britney Spears fans, her Circus single 'Womanizer' is doing just fine at 9, after an impressive 15 weeks on the charts, including a stint at number 1.