This clip hit three million views in one week because it shows a young Irishman riling up his dad by telling him he failed his driving test. His heavily-accented father has an epic rant before the son reveals the truth. NSFW language and major rudeness all round.
Jay Leno's tearful goodbye
After 22 years hosting The Tonight Show, Jay Leno broke down in tears to say his last goodbye.
Jimmy Fallon and the Muppets
For Fallon's last Late Night show (before he takes over from Leno), Jimmy and the Muppets perform The Weight by The Band as seen in The Last Waltz.
Day & Night