1. When they invented mug-ception.
2. When they looked at each other like this.
3. Every time they perform “History of Rap” on The Tonight Show.
4. When Justin wrote a new theme song for Late Night with Seth Meyers but it was actually for Jimmy.
5. When they performed to “Single Ladies” at the U.S. Open.
6. When they were feeling the beat together.
7. That time Jimmy was just so proud of his buddy.
8. When J.T. debuted his spot-on Jimmy impersonation.
9. Actually, any time J.T. does his Jimmy impersonation.
10. Pretty much any time they’re together.