KATY PERRY SET FOR HUGE DIGITAL SALES, HOT 100 DEBUT NEXT WEEK

Katy Perry's new single, Part of Me, which she performed at the Grammys last week is set for a big debut on the charts next week. Neilsen is expecting the singers latest to sell somewhere around 400,000 to 420,000 digital downloads by Sunday, February 19th. That would make Part of Me the biggest debut since Lady Gaga cast her spell at the Grammys last year and moved 448,000 downloads of Born This