Stars from ''Vampire Diaries,'' ''30 Rock,'' ''Jersey Shore,'' and more raid the family photo album to show us their childhood get-ups. Can you guess who's who?
''Here I am as a very small sheriff,'' says this NBC star and song-and-dance man of his 5-year-old costume. ''I remember really loving that vest and, clearly, I was very pleased with my mustache. And that is still the smile I use today for all formal occasions.''
Click to next screen to see who this is.