 He expressed interest in taking over "The Late Show" after Letterman retired but could not because "they already gave it to some fat guy".During the final episode, Colbert accidentally kills "lifelong friend and colleague" Grimmy in the final segment of "Cheating Death", after which he becomes immortal and uses his powers to fuel a star-studded celebrity singalong of "We'll Meet Again", before boarding a sleigh driven by Santa Claus, Abraham Lincoln, and "the man with all the answers".At the end of the show, Colbert tosses back to Stewart at "The Daily Show", implying that the show's existence was just an extended correspondent report for the program.