(CNN) -- CBS began to introduce the next host of the "Late Show," Stephen Colbert, by having current host David Letterman interview him and take a selfie together on Tuesday night. Letterman called Colbert "always entertaining," "the new kid" and "my friend." What Letterman was saying, implicitly, was that he supported CBS's pick for his successor. CBS announced that it had signed Colbert to a multiyear deal back on April 10, one week after Letterman revealed that he intends to retire in 2015. The unspecified timing of the transition came up during the chat between the two comedians. When Letterman asked about family matters, Colbert, who has three kids, said, "They're getting ready for me to hang around too much." He pointed out that he'll be signing off his Comedy Central show "The Colbert Report" at the end of the year, "and then there's -- I don't know -- when are you leaving? I should have asked!," Colbert said as Letterman laughed. "I should have asked."Stephen Colbert appeared on the "Late Show" with David LettermanColbert will be the next host of the talk showLetterman plans to retire in 2015
_ also styled himself differently than he usually does on the "Colbert Report," further distinguishing between that show and his next late-night act. Colbert also styled himself differently than he usually does on the "_," further distinguishing between that show and his next late-night act.