Ooooh, this is gonna make Donald Trump so angry... which means it's a good thing!!
And boy, are they ever!!
Keith doesn't need American Idol – He can get plenty of TV appearances on his own!
As you may have noticed by now, NBC has been busy airing a charity special called Red Nose Day all Thursday night.
But it wasn't just a solo… because John Mellencamp himself joined Keith onstage to make the act truly special!
We hope they were able to raise the money they were aiming for.
Ch-ch-check out Keith & John's charitable performance (above)!!!