Katy Perry On Track to Grab No. 1 From Eminem

Katy Perry will most likely score her first Number One album next week, says Billboard .Teenage Dream, her second disc, is on pace to sell between 170,000 to 200,000 copies as it debuts, more than enough to take the top spot away from the summer's biggest album, Eminem's Recovery. Recovery, which has spent seven weeks at Number One, will likely drop to Number Three, with American Idol winner Fantasia forecasted to take second with her new album Back to Me, currently predicted to sell between 120,000 and 140,000 copies.

Photos: Katy Perry strips down for RS

The five singles from Perry's Teenage Dream — "California Gurls," "Teenage Dream," "Circle the Drain," "Not Like the Movies" and "E.T." — have already sold a combined 4.5 million digital downloads, according to Nielsen SoundScan. "California Gurls" led the Hot 100 chart for six weeks earlier this summer. Perry's last album, 2008's One of the Guys, peaked at Number Nine after selling 47,000 copies in its first week.