Everyone old's in school again!

John Tucker Must Die features a gleefully smutty revenge plot involving high school girls getting back at their three-timing hottie boyfriend (Desperate Housewives' Jesse Metcalf). It also features several actors in their 20s playing much, much younger. Some performers can pull it off, but others, like 26-year-old Ashanti, look like they ought to be coaching the cheerleaders, not pompomming with them.

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Other inductees in the Old School Hall of Fame:

1. Lorna Luft (Paulette Rebchuck), Grease 2 (1982): At 29, the daughter of Judy Garland and sister of Liza Minnelli played a dizzy high school floozy, but looked more like the 35-year-old stripper the class clown brings to the prom.

2. Glynn Turman (Leroy 'Preach' Jackson), Cooley High (1975): Every time I see that scene where Preach has the half-naked girl in his mama's house, I scream, "Why are you still living at home? What are you, 30? ... Oh that's right. Acting."

3. James Spader (Steff), Pretty In Pink (1986): Now I know why snide, preppy Steff seemed to be in a different league than all the other high school kids — he was 26. He was also hotter. Evil, old and hot.

4. Olivia Newton-John (Sandy Olsson), Grease (1978): I have never admitted this before, but right before the song Sandy, when Danny (John Travolta) tries to feel her up, you can totally see Sandy's crow's feet. Not to break the illusion, but you know you've noticed.

5. Judd Nelson (John Bender), The Breakfast Club (1985): Sexy rebel Bender always seemed like the kind of guy that wasn't going to graduate on time anyway, so maybe that's why we didn't mind that he looked (and was) 25.