See the American Idol contestants (Siobhan! Casey!) and the stars (Demi Lovato! Josh Holloway!) they resemble
Credit: Jim Smeal/BEImages; Stephen Lovekin/Getty
Updated: Tuesday Apr 20, 2010 | 11:00 AM EDT
More from PEOPLE
See More News
Skipping gorilla juiceheads for the A-list, the Jersey Shore star makes the rounds
7 of 8
Saved from elimination, Big Mike keeps knocking the judges out with his smooth pipes and his uncanny resemblance to hip-hop pioneer LL Cool J.
Copyright © 2013 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.
In partnership with AOL