If Mike Tyson were English, he'd be called an eccentric. As he's American, he's called plain ol' weird - but he's a very watchable weird.
After all, this is the man who punched Ed Helms in The Hangover, sang like a dying whale in The Hangover Part II, petted numerous pigeons and as you'll see from the clip above, has played piano with a group of models to promote a Polish energy drink called Black.
Love him or hate him or both, the man's always worth watching - even when he's shilling sugar-filled Red Bull substitutes.
Perhaps unbelievably, this advert isn't the weirdest we've ever seen from an English-speaking celebrity selling products in foreign shores, as this video gallery of nutzo Japanese adverts proves beyond a shadow of a doubt. Seriously, just wait until you see Nic Cage...