From PEOPLE Magazine Click to enlarge
TORI SPELLINGS & BROTHER RANDY, 1982
The future 90210 star (then 9) vamped at dad Aaron's Halloween party.

CARRIE UNDERWOOD, 1989
"I even slept in my bunny costume, says the American Idol champ (then 6).

ASHANTI, 1987
"I dressed as a tap dancer," says the singer (at age 7), "and we used pillow cases instead of plastic bags to get more candy."

KIMBERLY STEWART, 1984
Rod's daughter (then 5) calls her Strawberry Shortcake outfit "my favorite. If I had it today, I'd wear it again."

KATIE HOLMES, 1996
Tom's fiancée (left at age 17) posed as the Late Show's Paul Shaffer.