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JLS have apparently told their former X Factor buddy to stop being such a lightweight and join them at their after show parties.
Aston told The Sun newspaper: "He's actually been quite dull. And I've told him. I said, 'You've been so boring. You haven't been out with us yet. What's going on?'
"I'm offended by that. Poor, poor, poor. But this weekend he's said he is coming out, so we'll see. I don't think he can handle it, to be honest."
The Xtra Factor host is apparently off the booze during filming of the show that made him famous.