American pop songstress Katy Perry has revealed that in order to hide her identity from fans and the media, she uses the alias of TV ex-junkie hooker Jerri Blank whenever she checks into hotels.

Revealing her alter-ego, Perry said, "I'll give you my alias because I've been using this one for two years. Cr*p! I'm going to have to come up with a good one now to replace it!"

She continued, "It's Jerri Blank from 'Strangers With Candy'. She's hilarious, stupid. Maybe I'll follow her lead and end up back in school some time."

Perry is this month's Rolling Stone Magazine Cover girl.

The singer also releases her new album, 'Teenage Dream', next week.