Miscellany Before They Were Famous: Celebrity Prom Photos From Mitt Romney hamming it up to Halle Berry taking the crown, see stars on their prom nights May 31, 2012 prev7 of 11next Seth Poppel / Yearbook LibraryFergie (Stacy Ferguson), Senior Year 1993, Prom Court - Junior Princess (center), Glen A. Wilson High School, Hacienda Heights, Calif. Share Read Later