Lady GaGa Dances Over Beyonce To Claim No.1

Lady GaGa ascends 2-1 on the Billboard Hot 100 this week with "Just Dance," which sold 279,000 downloads in the United States, according to Nielsen SoundScan. At 22 weeks, the song makes the longest trip to the top since Creed's "With Arms Wide Open" (27 weeks) in November 2000.

For the first time since Jan. 17, 1998, the Hot 100 does not have a debut; the only additions to the list this week are re-entries. Last week's No. 1, Beyonce's "Single Ladies (Put a Ring on It)," drops to No. 2, while T.I.'s "Live Your Life" featuring Rihanna holds at No. 3.

Kanye West's "Heartless" drops 4-5, Katy Perry's "Hot N Cold" remains No. 6 and Jason Mraz's "I'm Yours" rises 12-7. Britney Spears' "Womanizer" is down 7-8, Kevin Rufolf's "Let It Rock" featuring Lil Wayne climbs 12-9 and another West song, "Love Lockdown," slides 6-10.

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