Think your yearbook photo is embarrassing?
Well, check out these shots of our favorite A-listers from decades past!
With school just around the corner, we thought we'd share some before-they-were-famous celeb pics with you. From music-makers like Jennifer Lopez and Madonna to super studs Leonardo DiCaprio and Jake Gyllenhaal, see what Hollywood's hottest stars looked like before they hit it big.
We'll let you be the judge on which celeb wins the Most Improved award when it comes to posing for the photogs.
And for even more pics, visit Ancestry.com's newly expanded U.S. School Yearbook Collection!