Celebrity Idols' Celeb Look-alikes! See the American Idol contestants (Siobhan! Casey!) and the stars (Demi Lovato! Josh Holloway!) they resemble By People Staff Published on April 20, 2010 10:00 AM Share Tweet Pin Email Trending Videos 01 of 07 SIOBHAN MAGNUS Vince Bucci/PictureGroup; Orlando Garcia/JPI The quirky singer, who loves vintage dresses and hitting high notes, could stand in for Disney star Demi Lovato on Sonny with a Chance. 02 of 07 CASEY JAMES Nino Munoz/PictureGroup; Lionel Hahn/Abaca Long blond hair? Check. Scruff? Check. He-vage? Big check! The bluesy Texas singer and Josh Holloway could be long-Lost brothers. 03 of 07 LEE DEWYZE Nino Munoz/PictureGroup; Kristen Barlowe His look-alike, country singer Luke Bryan, just nabbed the best new artist award at the Academy of Country Music Awards. Sign of good things to come? 04 of 07 TIM URBAN Nino Munoz/PictureGroup; Sthanlee B. Mirador/Shooting Star Urban and Zac Efron have more in common than swooping dos: They sing, they smolder and they both make girls swoon! 05 of 07 CRYSTAL BOWERSOX Nino Munoz/PictureGroup Bowersox and fellow folksy singer-songwriter Jewel should tune up their acoustic guitars and do a duet already. 06 of 07 AARON KELLY Nino Munoz/PictureGroup; John Parra/Getty This season's David Archuleta, the 17-year-old has the aww-factor, pleasing teen girls and their moms alike. 07 of 07 MICHAEL LYNCHE Jim Smeal/BEImages; Stephen Lovekin/Getty 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.