But he saved the best for last. On Friday, his bestie Justin Timberlake stopped by for a bromatic hang session.
And you know whenever JT comes to visit Jimmy, hilarity ensues.
During Fallon’s stint on Late Night, the musically-gifted duo went viral with their series of “History of Rap” medleys.
Jimmy wisely chose to reprise this bit for his new audience and it turns out fifth time is a charm. Check out their latest mashup below:
-Sarah Carroll, 97.1 AMP Radio/Los Angeles