Dave Chappelle Finally Explains Why He’s 7 Years Late for Work To David Letterman [VIDEO]

It's been almost a decade since the very popular Chappelle Show debuted on Comedy Central to rave reviews and viewer love.

Then like a ghost, Dave disappeared, only to resurface months later and never went back to making the show. Many thought it a publicity stunt, many thought Chappel was just a flake.

Last night Dave came on on Letterman's Late Show and cleared up the whole business.