3) Adam Lambert
Adam Mitchel Lambert dropped everything he was doing to become one of the most successful American Idol stars.
He went to Mesa Verde Middle School and Mount Carmel High School where he was involved in theater and choir, performed with the school’s jazz band, and competed in the local Air Bands competitions.
After graduating high school, he attended California State University, Fullerton but left to pursue a singing career. He auditioned for American Idol in 2009 and made his way up from there.