Olly Murs has opened up on how he has managed to lose weight.

The singer told The Sun that his former colleague Caroline Flack suggested a diet plan to him.

He said: "I eat massive portions and I wanted to control it so I could lose a bit of weight.

"I'm doing the Soulmate food delivery diet. I heard about it through Caroline, actually.

"I think the missus was a little bit worried I was losing this weight. She's been stuffing me up for the last two years! But I've got to look good for the ladies."

Murs added in the same interview that he would only contemplate joining the X Factor as a host if Flack was working with him.

The singer has been linked to the job recently after Dermot O'Leary's contract was not renewed.

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Watch Olly Murs' 'Seasons' video below: