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Olly Murs has revealed the truth behind his Comic Relief nappy rash.
When Olly took a trek through the African desert for the charity there were reports he was suffereing from 'chaffing'.
Setting the record straight, he tells Digital Spy: '(there was) massive chaffing! I had some Sudocrem and it said it was for nappy rashes!
'I was chatting for an interview and told him I had a nappy rash- as that's pretty much what it was. I had it all down the front.
'And when you're walking for nine to 10 hours a day, it was hurting. We're talking about serious pain.'