In recent years, we've come to realize there are a lot of muscles in Hollywood, and the stars who own them have a lot of trouble containing them. Like, remember all the beautiful arms at Comic-Con last year, and all hot actors attached to them? And don't forget about Nick Jonas in his underwear, showing off his shocking transformation. Plus, there's always Henry Cavill in that insane Superman suit. Keep reading for even more guys who have the exact same struggle.