Late Late Toy Show host Ryan Tubridy revealed he will look like a 'complete fool' when he dons a cheesy Christmas jumper for the annual TV extravaganza on Friday.
The beanpole presenter also said he will be featuring more affordable toys because recession-hit Santa won't be able to deliver as many presents as in recent years.
Ryan (38) said: "I will look like a complete fool. We got the costume sorted out, we've a team ready to go, we picked the jumper, all dignity will be left at the door at showtime.
"I will be down on my hunkers with 5 to 11-year-olds, shooting the breeze and they'll become my friends on the night and they'll run the show."
Dad-of-two Tubridy said there will be a big focus on cheaper toys this year so that excited kids won't be putting too much pressure on Santa or their parents.
Tubridy told the RTE Guide: "Santa is struggling at the moment in Lapland he had to lay off a load of elves recently so he's not going to be able to bring the big presents.
"In fact, he wasn't able to bring them last year and we've been urging children, when writing their letters, to tone it down a little bit.
"We're going to have loads of toys on the Toy Show that are very affordable, and shouldn't be that difficult for Santa to deliver."
Tubridy is currently helping other RTE 2fm jocks to promote the St Vincent de Paul Toy Appeal in a bid to get presents for needy
He explained: "It's station-wide, which is great. Every show is getting involved and hopefully that will at least double the number of
"I hope it's going to make a difference because I'm talking to people on the radio all the time who are going through the horrors at the moment. It's really tough."
Tubridy hopes big-hearted people will adopt the attitude of one of his favourite Christmas movies, It's A Wonderful Life about an angel called Clarence who helps a debt-ridden man realise how many lives he has touched.
"We can all be Clarence and do a little helping. Now that sounds mawkish and saccharine, I know, but it's the only way we're going to put a bit of light on a dark situation.
"The place is banjaxed. We have to count on the goodness of strangers, the kindess of people."