Gnarls Barkley shot to the top of the charts on Sunday - not bad for a band who've yet to sell a single CD!
Their song, Crazy, is the first song to top the singles chart on downloads alone, toppling last week's top track, So Sick by Ne-Yo.
New at number two was You Have Killed Me by eighties legend Morrissey.
And in the albums chart, another set of veterans, Embrace, carried on their recent revival, taking the top spot with their latest album This New Day.
Gnarls Barkley are producer Danger Mouse (aka Brian Burton) and hip-hop artist Cee-Lo.
Although they haven't even made a video for their hit song, you might have heard of Danger Mouse - he produced Gorillaz' recent hit album Demon Days.