It's Chris Daughtry!
Chris was an enormous fan favorite during Season 5, and despite being eliminated from the Top 4, he went on to form the band Daughtry and become one of Idol’s most successful contestants.
The rocker shared this glimpse of his ab-tacular new physique on Twitter, writing “Just left the gym! After 5 yrs of neglect, I'm PUMPED to see AB's again! Hard work and commitment is paying off!” We bet Chris’ wife Deanna is enjoying the new view too!