Ashley Tisdale to co-star in 'Hellcats'

Actress-singer will play cheerleading team captain

In her first regular broadcast series gig, actress-singer Ashley Tisdale has signed on to co-star on the CW pilot "Hellcats."

"Hellcats," which is executive produced by "Smallville" star Tom Welling, centers on Marti (Aly Michalka), a college girl from the wrong side of the tracks who, after losing her scholarship because of budget cutbacks and her mother's (Gail O'Grady) chronic irresponsibility, joins the Hellcats, the college's competitive cheerleading team.

"High School Musical" alumna Tisdale will play Sierra, the peppy and fiercely intense captain of the Hellcats who, after an initial clash with Marti, her new roommate, realizes that she just might be the godsend the Hellcats need to win the championship.

Like Michalka, who starred on Disney Channel's "Phil of the Future," Tisdale has also become a star on Disney Channel.

In addition to her role as Sharpay Evans in the "HSM" franchise, she also co-starred on the channel's comedy "The Suite Life of Zack and Cody" and voiced a character on "Phineas and Ferb."

On broadcast TV, she did an arc on the CBS sitcom "Still Standing."