he stayed true to his famous shtick. he killed the alter ego, the grim reaper, going over the top as an immortal. >> and colbert also gave us some perspective while looking back on some of his accomplishments. >> because the truthiness is all those incredible things people say i did -- running for president, saving the olympics, colbert super pac, treadmill in space, the rally to restore sanity and/or fear, and/or cat stevens' career, none of that -- none of that was really me. you the nation did all of that. i just got paid for it. >> oh, boy. the final moment, a testament to the show's legacy starting with jon stewart. colbert was joined by pretty much every famous person imaginable to sing "we'll meet again." >> to say good-bye to colbert as he's heading to the late show taking over for david letterman on cbs early next year. >> looks like a party. apple's tim cook made