Ever wonder what your favorite stars looked like when they were in school? M decided to round up a bunch of yearbook pictures from your favorite celebrities to see if you can guess who they are! These stars sure did change a lot since picture day, that's for sure! Now it's time for you to put your skills to the test.
Click through the gallery to see if you can figure out who these celebrities are and then drop a comment below telling us how many you got right!