Popular (TV Series)

Popular was a 1999 - 2001 American comedy-drama that aired on the WB television network. It starred Leslie Bibb and Carly Pope as two high school students -- one popular, one not -- who become stepsisters when their single parents get married.

Slumber Party Massacre (Season 1, Episode 5)
Sam's friend Carmen (Sara Rue) invites all of the popular girls to her 16th birthday party, hoping to boost her own social standing. The popular girls agree to attend, mostly because Carmen's handsome brother Leo will be there. Nicole tries to seduce Leo only to be embarassed when she finds out that Leo and Sam are old friends. Feeling vengeful, she tricks Carmen into letting herself be hypnotized, then orders her to act like a chicken in front of the other popular girls.