The likes of Bruno Mars, One Direction, JLS and Lawson will all perform at London's O2 Arena for this year's Capital FM event.
Robbie Williams Hails Lawson As "Lovely Lads" After Christmas Lights Ceremony
The 'Standing In The Dark' four-piece say it was an "honour" to meet and perform for the Take That star.
Robbie Williams has described Lawson as "lovely lads" after the band opened for him at the Oxford Street Christmas lights ceremony this evening (5th November).
The 'Taking Over Me' stars said it had been an "honour" to open for the 'Candy' star, fresh from him scoring a number one on the Vodafone Big Top 40 over the weekend with his latest single.
"Lovely lads. RW x," Robbie tweeted alongside a picture of him with Lawson this evening.
"Just played the Oxford Street light switch on. Such an honour," drummer Adam Pitts posted, before adding: "Just met @robbiewilliams, my idol. What a lovely down to earth guy.
"Just met Robbie Williams and then performed at the Xmas lights switch on! Was the maddest hour of my life!" singer Andy Brown wrote, while Joel added. "I'd like to also add that Life Thru A Lens was one of the first albums I got addicted to! Massive honour to be opening for @robbiewilliams."
View a picture of Robbie Williams and Lawson together below (Credit: Twitter):
Earlier today Lawson announced plans to embark on a new UK and Ireland tour in February and March 2013 to promote new album 'Chapman Square'.
Lawson have also been confirmed for the day one line-up of this year's Capital FM Jingle Bell Ball, and join Bruno Mars, JLS and Little Mix on the line-up for the Saturday (8th December).