Power lifter Kenneth Leverich got together with Thrillist to pull off one of the funniest pranks I've ever seen.

Disguised as an elderly man, Leverich took it on down to the legendary Muscle Beach in Venice, CA to school some young'uns. Dude totally pulled it off, too.

By the time he was done, a big ole crowd had amassed and were in awe of the unbelievable strength of the "octogenarian".