There's a new slogan on a hat for Donald Trump that's selling off the shelves.

FOX's Michelle Pollino reports:

John Oliver, host of HBO's 'Last Week Tonight' stopped by Stephen Colbert 'Late Late Show' on CBS to explain the 'Make Donald Drumpf' hats he created in honor of the GOP frontrunner Donald Trump.

And in order to separate the man from the myth, Oliver did some digging and found out Donald's real name, his ancestral name was Drumpf. The hats took off, selling 35,000... Enter Jay Z:

(Oliver) "Jay Z wanted one for free and I did say well be careful cause if he puts that on his head in public, you're gonna need more hats and if his wife puts it on in public, we are no longer a TV show, we're a hat manufacturing company."

Michelle Pollino, FOX News.