Apparently, Jimmy Kimmel has been literally dreaming of the moment he just had on Jimmy Kimmel Live last night for years. On last night’s episode, he had David Letterman on as a guest and he couldn’t be more bashful about it, almost in adorable way (there were plenty of awww’s from the audience). The first part of the interview is embedded above, then watch part 2, part 3, part 4 and part 5 (even Obama didn’t get 4 clips online for his latest late night appearance).