Bryce and Mulls wanted to play a little game while we had Marc Martel in studio.
Marc is a YouTube sensation and the vocalists that filled in missing recordings in the 'Bohemian Rhapsody' movie for Freddie Mercury, so he knows his shit.
But can you tell the difference between Marc and Rog? The boys decided to find out.
Watch the video above and see how well you go.
Spoiler alert - this isn't hard at all.