Ant McPartlin refuses to wear any underpants other than white ones when he goes on live television.
The 'Saturday Night Takeaway' host - better known as one half of presenting duo Ant and Dec - claims to have never made a live appearance in 25 years without donning his "lucky" underwear.
He said: "I like to wear a white pair of briefs for luck. Never a coloured brief.
"Next time you're watching me you'll think, 'He's got white briefs on.' "
Ant's presenting partner, Declan Donnelly, insists he has no lucky rituals.
He said: "I have none. Superstitions that is, not briefs."
The pair - who live four doors apart on the same street - are such close friends that even their pet dogs are best pals.
Dec said: "We had a bit of time off last summer so we thought it would be good to get dogs and spend time with them while they were puppies. Now our dogs are best mates."
Ant added: "It's funny because mine is a chocolate Lab called Hurley and his is a dachshund called Rocky. The size difference is ridiculous. They are best friends.
"They love each other. I can't walk past his house now without Hurley pulling me off to try and go in."
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