Disney Channel

Tyra Banks has gone geek!

The supermodel underwent a nerdy make-under for a cameo in the hit Disney show Shake It Up, and the 38-year-old is nearly unrecognizable as a sloppy librarian with oversized glasses and hideous green eye shadow. Yikes!

Banks will play Ms. Burke, who helps main character CeCe concoct a Parent Trap-like plan to get her parents back together!

Tyra's episode of Shake It Up airs this Sunday on Disney!