Imagine a Las Vegas Strip show where no one knows their lines. A show where the plot changes every night based on who’s in the room. In a nutshell, that’s Freestyle Love Supreme, the live hip-hop improv show co-created by Hamilton composer Lin-Manuel Miranda, recently launched at the Venetian.

Before stage superhits like Hamilton landed on Broadway and In the Heights debuted on the silver screen, Freestyle Love Supreme served as the origin story to Miranda’s prolific and enduring career as a playwright, producer and performer.

“This is the opposing muscle group to my writing,” Miranda told the Weekly ahead of his two-night appearance in the show November 16 and 17 in the Summit Showroom. “I believe writer’s block is a myth, because while I was working on those shows you like, the thing I would do on the weekends, or the thing that in my early days was paying me when the writing wasn’t, was going up in front of people and improvising and making up songs with my friends.”

The 90-minute show, co-founded with musical improv guru Anthony Veneziale and Broadway director Thomas Kail, dates back to the early 2000s. After all this time, it still keeps Miranda on his toes.

“There’s a reptilian part of my brain that is unbelievably anxious about it, because it really is the nightmare of, you’re going out onstage in front of people and you don’t know your lines,” he said. “That’s a common anxiety dream for people, and that’s actually what we do.”

Maybe you’ll hear a witty rhyme about someone who peed in an ice machine, or a slow-jam freestyle about two audience members’ meet-cute over 50 (untouched) beers. Everything is sourced directly by the audience, from nouns and verbs to traumatic tales and embarrassing fails. And the talented cast of comedians, emcees, singers and beatboxers will miraculously riff and rhyme off whatever is given to them—even to a fault.

“We have rapped pin numbers on our ATM cards. We have rapped childhood crushes. If you’ve gone to enough Freestyle shows, you know the story of my first kiss, painfully!” Miranda said. “There’s no time to think of a lie, so we have all overshared at one Freestyle show or another.”

More impressive than Miranda’s hilarious rhymes about wearing He-Man boxers or getting a lap dance from a robot are the mental gymnastics through which Freestyle puts its performers. The brain power it takes to listen to an audience suggestion, remember it and then physically act it out through harmonies and organic beats is sublime.

“It’s really weirdly the most relaxing part of my life, because my only job is to be present,” Miranda said. “The only job is to hear what has been offered and go. It’s a yoga in a way, because there’s no getting good at it. There’s just what are you leaning into tonight and being as present as possible.”

No two nights are identical at Freestyle Love Supreme. And with a rotating roster of special guests, the chemistry onstage will never fizzle out. Miranda sounded confident the show would have enough material to run year-round.

“I anticipate people being a little out of pocket,” he said, laughing, “and giving themselves permission to tell the stories they maybe wouldn’t tell back home. That’s the stuff we make gold out of.

“We ask for your regrets. We ask for your joys, and then we’re going to musicalize them somehow.”

FREESTYLE LOVE SUPREME Wednesday-Friday, 8 p.m.; Saturday, 7 & 10 p.m.; Sunday, 7 p.m.; $58+. Summit Showroom, ticketmaster.com.

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