Alex Jones has been hit by a last-minute wardrobe hitch as she prepares to make her debut on The One Show.
The Welsh presenter forgot to pack her essential "pull-in knickers" when she travelled to London from Wales.
Alex, 32, selected a dress for her eagerly-anticipated debut after looking through The One Show wardrobe on Friday.
But she revealed: "I'm going to have to change the plan. We did have a little look through on Friday but I've forgotten the special pull-in knickers so I'm going to go for a different dress."
She told Chris Evans's Radio 2 breakfast show: "It's the underwear that pulls you in a bit. In my rush to get to London yesterday I didn't pack it so that dress, I cannot wear."
Alex and her co-presenter Jason Manford will take to the sofa of the BBC One show, replacing Christine Bleakley and Adrian Chiles, on Monday evening.
One of Alex's first assignments will be interviewing Pamela Anderson - a potentially tricky encounter as the Baywatch star dated her ex, presenter Steve Jones.
Jason warned: "That's going to be awkward. Pamela and Alex both share an ex-boyfriend. Two words... Steve Jones." Alex said: "Great. Day three on a new job and Alex is sat with Pamela Anderson, can't believe it."
Pamela dated the 101 Ways To Leave A Gameshow host in 2004. Alex later went out with the T4 presenter after they met on a show in Wales.
Salford-born comic Jason revealed he was not feeling too worried about the pair's debut, saying: "I think it's going to be all right. I'm looking forward to it. The show is already there. We have to say things and not be offensive."