1. When the opening credits, directed by Spike Lee, were broadcast for the very first time.
2. When Jimmy and Will Smith threw back to The "Carlton."
3. When Harry Styles dropped by...
...and he told us all of his most intimate secrets.
4. When Robert DeNiro, Tina Fey, Joe Namath, Rudy Giuliani, Mariah Carey, Tracy Morgan, Joan Rivers, Kim Kardashian, Seth Rogen, Lindsay Lohan, Sarah Jessica Parker, Mike Tyson, and Stephen Colbert all gave Jimmy the $100 they owed him.
5. Oh, Lady Gaga showed up too...
...and she performed like only Lady Gaga can perform.
6. When First Lady Michelle Obama talked about Malia turning 16 years old and learning to drive.
7. When Will Ferrell made out with a poster of Harry Styles...
8. ...and then made "shy face" between Jimmy and the first lady.
The first lady also explained to Sara and Stacy why exercise is not "Ew."