Lin-Manuel Miranda did some amazing freestyling on The Tonight Show Starring Jimmy Fallon.

Jimmy Fallon’s segment “Freestylin’ With The Roots” had a special guest on Tuesday night.

None other than Lin-Manuel Miranda joined the group for a Hamilton-inspired freestyle for a nonexistent play called The Sassy Life (um, hopefully it won’t remain nonexistent forever).

Watch it immediately:

Fallon usually picks members of the audience, who request topics for The Roots to improv about them.

One audience member asked the band to improv a Hamilton-style song about her… and who better to join them for the occasion? The resulting freestyle will make you wish your name was Olivia.

Lin-Manuel Miranda also appeared on the show to talk about Puerto Rico, and the humanitarian crisis that is happening at the moment. Take a moment to check out the Hispanic Federation’s Hurricane Relief Fund, for which Miranda released the “Almost Like Praying” charity single.