Comedian, Russell Brand may play a hard partying rock star in “Get Him To The Greek,” says there’s one man even he can’t top, co-star Sean “Diddy” Combs.

“Don’t go to Vegas with Diddy, that’s double Vegas.”

Diddy took both Russell and co-star Jonah Hill on separate trips to Sin City.

“Diddy gave me good tips. If you’re with Diddy, you’re partying. He’s a one man party. He’s a fiesta,” he said.

“Some stuff I can’t say, nothing I can say in front of my girlfriend, unfortunately,” laughed Jonah.

“Yeah, yeah, yeah, took ‘em to Vegas,” Diddy said. “I like to work on our chemistry. Just party till you feel like you’re about to get sick.”