The singer revealed that traffic going to the O2 Arena was so bad that he had to get public transport from London Bridge to arrive on time.
Murs laughed that he had to run through the station and "queue up to buy a ticket" as he doesn't own an Oyster card, during an interview in ITV2's backstage studio.
The star added that he had to run down the stairs, joking that he's not the best at it after a clip of him falling down stage stairs went viral last year.
Muse also revealed that they had to take the London Underground earlier today by posting a series of picture of their journey via Twitter.
Murs is nominated for 'British Male' and 'British Single' for 'Troublemaker' at the show.
Gallery - Brit Awards 2013 in pictures