Mandy Gonzalez knew Lin-Manuel Miranda before he was Lin-Manuel Miranda.

Gonzalez, who won a Drama Desk Award for originating the role of Nina Rosario in the Tony-winning “In The Heights,” came up alongside Miranda as he was honing his unique style.

“On Off Broadway, I remember handing out flyers to people, saying, ‘Please come and see the show, it’s really special and we love it.’ ” Gonzalez told the Boston Herald. “We didn’t know then if it would go all the way.”

“In the Heights” did go all the way. The hip hop, salsa and Latin pop-infused musical became a minor sensation on Broadway in 2008 paving the way for the unprecedented success of Miranda’s “Hamilton” seven years later.

On Sept. 20, Gonzalez will team with the Boston Pops to present the world premiere of “Everything I Know,”

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