Jonah Hill confused Drake with his nutritionist.

Jonah Hill

Jonah Hill

The 32-year-old actor wanted to get in shape after gaining weight for his role in 'War Dogs', so he visited a dietary expert, who asked him to email him his food intake for the day, leading to an unfortunate mix up.

He recalled: "I was just like at home, and I was bored, I was like 'Oh, I didn't email this guy.' So, I wrote down like yogurt, like salad, chicken, whatever, and I sent it to him.

"I was looking later, like an hour later, through my sent messages. He didn't email back. He usually just says OK or something, and it must've been 'D-R.' because it was 'Doctor', and I'd sent it to Drake.

"So Drake - who I don't know well at all - just got an email from me saying 'Yoghurt, salad, chicken' and then just Jonah at the end of it.' "

Jonah is so embarrassed by the confusion, he joked he will now have to avoid the rapper in the future.

He added: "He never wrote back. Never spoke to the guy. Another guy I've gotta duck for the rest of my life."

The actor had decided to see the nutritionist on advice from his muscular friend and '22 Jump Street' co-star Channing Tatum.

He explained on 'The Tonight Show Starring Jimmy Fallon': "I called Channing Tatum and I was like, 'Hey if I eat less and go to a trainer, will I get in better shape?' and he was like 'Yeah, you dumb mother f**ker, of course you will, it's the simplest thing in the entire world'.

"He gave me the number of these guys."

It seems Jonah is used to being mocked by his friends, as video footage has emerged of him being startled by Leonardo DiCaprio, with his 'Wolf of Wall Street' co-star pretending to be a fan who was taking pictures of him.

Jonah was standing outside a store when the 'Revenant' actor suddenly appeared in front of him, clicking away on his phone, prompting the 'Super Bad' star to visibly jump in surprise.

When he realised it was his pal, the two men shared a laugh and a hug.