Take That star Gary Barlow is set to make an appearance on tonight's Late Late Show.
The singer-songwriter, who also serves as a judge on The X Factor UK, is one of Britain's most successful songwriters, having written thirteen Number 1 singles.
Irish comedian and radio DJ Jason Byrne will also be chatting to Ryan Tubridy this week.
And Love/Hate star Peter Coonan, Fr Peter McVerry and Perry Ogdon will discuss the 'Coola Boola' Santa Hats which they hope will raise money for the Peter McVerry Trust and SARI.
Watch The Late Late Show tonight at 9.35pm on RTÉ One.