Hamilton creator Lin-Manuel Miranda, who penned the tune with Abrams, talked to ET at BroadwayCon in New York City, where he dished on the big-time director's vocal skills.
"It's J.J. and I singing on the track," Miranda revealed. "So it's one level of surreal to write something for a movie. It's another level to hear your voice in a Star Wars movie."
The composer described the amazing moment he shared the song with his Hamilton cohorts, saying, "I got a screening together for the Hamilton cast and crew, so it was really fun, because we just burst into cheers."
In December, Abrams appeared on The Tonight Show Starring Jimmy Fallon, where he revealed how the songwriting process between him and Miranda got underway.
"I end up e-mailing Lin Miranda and saying, 'I know you were kidding but if you actually want to write this music,'" he said. "He's like, 'I'll drop everything!'"
And apparently Abrams wears even more hats than we know (despite everything that perfectly messy hair suggests). Not only is he a director, songwriter, and performer on maybe the biggest movie of all time, but he also made a Cloverfield sequel
entirely in secrecy!