Irish pop group Westlife had a night to remember on Thursday when they met President Barack Obama in Oslo at the Nobel Peace Prize concert.

Obama and his wife Michelle attended the musical event, and Westlife made sure they got over to the Norweigan capital with pleny ot time to spare so they could meet the man of the moment.

The foursome — Shane Filan, Nicky Byrne, Kian Egan and Mark Feehily — were performing at the concert and availed of the opportunity to meet the U.S. Commander-in-Chief beforehand.

"I've always said that I'd love to meet an American President and I thought some day maybe I would,”  Filan told The Evening Herald before metting Obama.

"But I certainly didn't think it would be President Barack Obama, he's kind of the one everyone wants to meet.

"We're playing at the Nobel Peace Prize concert so we flew over a bit earlier to meet him and we've been looking forward to that very much."