Ke$ha Ends Susan Boyle's Billboard Chart Reign

Pop rapper's debut, Animal, knocks British songstress to #2.

It took a party-animal newcomer like Ke$ha to end chart champ Susan Boyle's Billboard reign. The Auto-Tune-loving pop rapper, whose "Tik Tok" hit #1 on the iTunes download chart, will end "Britain's Got Talent" runner-up Boyle's six-week run at the top of the albums chart next week with her debut, Animal, which sold 152,000 copies, according to figures provided by Nielsen SoundScan.

That solid debut stopped Boyle's I Dreamed a Dream from making it seven weeks in a row at #1, but don't cry for the reality-show star, as her album moved another 93,000 copies as it eased up on the 3.2 million mark in less than two months.

For the second week in a row, the top five spots on the chart are all filled by female artists, with Lady Gaga's The Fame falling a spot to #3 on sales of 66,000 as total sales crept toward 2.5 million, followed by Alicia Keys' The Element of Freedom (#4, 62,000) and Mary J. Blige's Stronger (#5, 47,000).

The rest of the top 10 features some usual suspects: the soundtrack to "Alvin & the Chipmunks: The Squeakuel" (#6, 44,000), Taylor Swift's Fearless (#7, 38,000), the Black Eyed Peas' The E.N.D. (Energy Never Dies) (#8, 36,000), Justin Bieber's My World (#9, 34,000) and Gaga's The Fame Monster EP (#10, 31,000).

The early-year sales blues continued unabated last week. With the exception of Ke$ha, every album in the top 25 suffered double-digit sales dips. But after moving down the charts, Rihanna's Rated R inches forward three spots to #11 on sales of 27,000 for a seven-week total just north of 500,000. Meanwhile, ex-boyfriend Chris Brown continues his slow slide, falling another seven spots to #42 with Graffiti (11,000).

One of the only other debuts on the chart is from former "American Idol" runner-up Katharine McPhee, whose Unbroken hits #27 (15,000). Don't look for much of a shake-up next week, as the only major newcomers will be Vampire Weekend's Contra and the third solo album from former B2K member Omarion, Ollusion.