Kevin Hart is in great shape, as his workout posts on Instagram and fitness webseries on YouTube can all attest. But when it comes to his actual training, the comedian prefers to fly solo, despite some of his buffest fellow celebrities offering to be a gym buddy. In a recent conversation with Ellen DeGeneres, Hart explained why he flat-out refused to work out with Mark Wahlberg while they were filming the upcoming Netflix original movie Me Time together.

"What I've found is that when I get to work with people that are really dedicated to the gym, we don't work out, we don't even want to," he said. "I don't want to be in your space, I don't need you in mine. I love that you go at it, but we're on two different wavelengths of time and schedule... Mark's an early riser, though, Mark's a 4 a.m., 4:45 guy, I'm a 4:30, 4:45 guy, but we never mention it. And then you'll throw like the occasional 'hey Kev, maybe we should work out,' and I'm very honest, I'm like 'no, I don't want to.' Mark's like 'we've got to get one in.' No, we don't!"

"I think our relationship is great, and I don't want you to go in there and we try to impress each other and hurt ourselves," he continued. "That's how it happens. He's lifting a certain weight, and I try to do the same thing, next thing you know I throw my back out. I don't need to be around that. I like to be by myself and with my one trainer that I can yell back at from time to time, that's enough for me."

Hart added that he has a similar philosophy when it comes to avoiding training sessions with his good friend and Jumanji co-star Dwayne "The Rock" Johnson.

"That's why I don't work out with Dwayne neither," he said, before joking about Johnson's penchant for posting inspirational workout content from his home gym. "I don't want to go in there and lift all that mess, all that stupid stuff that he got in there. Who wants to do all that stuff? Listening to how good today is. 'Today the day, we got to go, we got to challenge ourselves.' No we don't! Do what you do, and I'll do what I do."

From: Men's Health US