I cannot even begin to describe the energy of John Belushi. He would cartwheel and backflip all the way back & forth across the stage. He had an oxygen tank at either end. Now I'm sure he was probably rocket-fueled by heavens only know what kind of drug.
The only video I can find to embed is the trailer from The Blues Brothers movie. If you watch to about a minute and a half in and keep watching, you'll seem them in action. I feel really lucky to have seen them live, they were great performers.
This is where I curse & say bad words because NOTHING will imbed from YouTube for me today. Here's the link if you're interested. Sorry!