This video proves you don't need to work out to stay in shape because you will no doubt burn a ton of calories from laughing.

This hilarious clip features a group of people (presumably in the '80s) sporting unitards while doing aerobics. It looks like these folks were dressed for 'American Gladiators' while doing a workout inspired by 'Physical.'

It's kind of ironic. These people were dedicated to staying in shape, enabling them to still be around years later and shudder when this video popped up on the Internet for all of humanity to see.

They may in tip-top shape, but chances are they're coming down with a serious case of embarrassment.