Joe Manganiello spends an entire hour on his abs at the gym

The hunky actor was spotted dedicating an hour to his washboard stomach.

97% of people can't identify these male celebs from an image of their abs! Can you?

Joe Manganiello Gives Inside Look to His Shirtless Workout!: Photo 3014475, Joe Manganiello, Magazine, Shirtless Photos

Músculo Joe Manganiello

Joe Manganiello's Reveals His Secrets To Abs After 40

Joe Manganiello's 80-20 Plan Is the Ultimate Secret To His Six-Pack

97% of people can't identify these male celebs from an image of their abs! Can you?

Joe Manganiello gets naked in Mens Health photoshoot - Irish Mirror Online

Joe Manganiello Reveals His Secrets To Abs After 40

Joe Manganiello spends an entire hour on his abs at the gym