Stephen Colbert And Jon Stewart Swap Some Spit For A Good Cause

Jon Stewartdropped by the CBS “Late Show” set on Wednesday, and things got messy in a hurry. 

Stephen Colbertand the former “Daily Show” host have a long history of doing spit takes, and they each got in a shot to help promote Stewart’s “Night Of Too Many Stars” event onHBOon Nov. 18.

The concert raises money for autism programs, and in the past 12 years, has brought in $24 million. The event is also fundraising via a raffle and one of the prizes is the opportunity to join Stewart beneath Colbert’s deskduring a “Late Show” taping. 

Check it out above,then visit the “Night Of Too Many Stars” websitefor more information. 

This article originally appeared on HuffPost.