Stephen Colbert, David Letterman

Stephen Colbert won't officially take over as host of The Late Show until next year, but he'll stop by as a guest next Tuesday, April 22.

CBS announced last week that Colbert will succeed David Letterman after he retires in 2015.

Stephen Colbert breaks silence on Late Show takeover

This won't be Colbert's first time on the show. The Colbert Report host has made several appearances dating back to 2005.

Late Show with David Letterman airs at 11:35/10:35c on CBS. Will you watch Colbert's appearance?