Watch Mark Cuban Bring the Heat in Donald Trump Roast with Stephen Colbert

Billionaire investor and Shark Tank star Mark Cuban made an appearance on Stephen Colbert’s Late Show last night — but it wasn’t to discuss business.

Cuban, who once praised Donald Trump for saying what was on his mind, has changed his position on the candidate. In fact, this spring he even went so far as to say he would consider being Hillary Clinton’s running mate. And on Monday, he announced he was in support of the #NeverTrump movement.

On Wednesday night, he got even more vocal with his distaste for the candidate, and the gloves came off in a classic roast.

“Donald, I’ve got a travel tip for you. When you’re going through customs and they ask if you’ve got anything to declare, try not to blurt out ‘bankruptcy,'” he quipped.

“Donald, do you know that in order to be a billionaire, you have to have the ‘billion’ part in your bank account — not just the ‘air?'” he continued.

“Don, you just fell into the shark tank,” Colbert joked.

Watch the full clip, above.