(Cover) - EN Showbiz - Katy Perry's geeky alter-ego Kathy Beth Terry has been given her own Facebook page.

The pop singer transforms herself into the geeky 13-year-old schoolgirl ahead of the release of her new single Last Friday Night (T.G.I.F). And Kathy now has her own Facebook page, with the photos showing Katy adorning oversized spectacles and braces to play the high school girl. She also lists her interests on her Facebook page, which include science fairs and Hollywood hunks like Jared Leto.

It's not just Facebook that Kathy Beth has been introduced to.

Kathy Beth is also now on Twitter and has been posting cheeky messagea.

"Harry S. Truman High: your firewall is weak, just hacked into @Twitter at the library, you can't block me, n00bs!" she wrote earlier today.

Kathy Beth will feature in the video for the song, which is the fifth single from Katy's Teenage Dream album.

Fans of the singer were treated to a sneak preview of the video, with 35 seconds of the promo unveiled today. (C) Cover Media