De Niro was pretty funny at the Comedy Central event and closed with a zinger at Kraft's expense.
"Like Robert Kraft at a massage parlor, I want my Roast to have a happy ending," he told Baldwin before wrapping it up.
The crowd laughed. So did Baldwin. Guessing Mr. Kraft didn't find it so funny.
Other highlights from the 'Roast' ... De Niro threw a few jokes Caitlyn Jenner's way -- including this gem:
"Caitlyn Jenner. Now there's something different about you but I can't put my finger in it!"
Caitlyn shot back, "Yes, you can!!!" Good times ...
De Niro also went after Donald Trump ... telling the room:
"This is like that Moscow hotel room where a bunch of wh*res p*ssed all over Donald Trump."