Bruno Mars (Peter Hernandez), Senior Yearbook Photo at President Theodore Roosevelt High School in Honolulu in 2003, and Bruno Mars Today

Aw, Bruno! Mars had a helluva hair dilemma back in high school, but his Hawaiian-groomed hair and high-powered voice took him to new heights in the world of R&B and pop music. Why the hat, Mars? There’s no mo’ ‘fro to hide from anyone!