Tim McGraw recently performed on "Good Morning America," but it wasn't his singing that caught people's attention ... it was his appearance.

Fans took to social media calling him "sickly" and "too skinny."

Tim responded with "I'll be the first to admit I take working out to the extreme."

Tim has a full tour bus that is a traveling gym, so he doesn't miss a workout on the road.

Do you think Tim McGraw is too skinny?

Take the poll ...

More From 92.9 The Bull