Since we're talking about white boys, let's bring in Weird Al Yankovic. Now, the polka parody king has sadly never hit #1 but the closest he ever came was "White and Nerdy," which hit #9 and is a cover of WHAT 2006 #1 SONG for Chamillionaire? Be careful: Weird Al's title is not a straight-up ripoff of the real song.
Ridin'