Murs is in the running for 'Best Single' with 'Heart Skips A Beat', but the boyband member confessed that he is disappointed his fellow X Factor alum has not received more recognition.
"It doesn't make sense," he told the Daily Star. "He's had two double platinum albums and number one [singles].
"But he'll perform on the night, show what he can do and do himself justice."
Murs himself has admitted that he would have liked to receive more Brits nominations.
Ed Sheeran, James Blake, James Morrison, Noel Gallagher and Professor Green will compete for the 'British Male' trophy at tonight's Brit Awards, which air live from London's 02 Arena at 8pm on ITV1.
> Brit Awards 2012 poll: Who should win 'Best Single'?
Watch Olly Murs in the video for 'Heart Skips A Beat' below: