El-P, of the hip-hop duo Run The Jewels, is writing the music for upcoming biopic Fonzo starring Tom Hardy and Matt Dillon.

The movie, which is written and directed by Josh Trank, focuses on the life of the notorious mobster and businessman Al Capone.The story begins after the crime boss has served 10 years in prison around the time he has been diagnosed with dementia.

According to the movie's synopsis, the biographical movie will trace the final years of Capone when his sordid past finally catches up to haunt him.

Fonzo is Trank's first movie since 20th Century Fox's Fantastic Four.

Major New Project

On Wednesday, April 18, El-P announced that he will be working on the music for Fonzo. On Twitter, he posted a photo of himself with Hardy in his mobster costume.

This news came shortly after El-P had revealed that he is initially commissioned to create a track for last year's Blade Runner 2049. However, he explained earlier this year that the deal fell through and the music he created was scrapped.

In a press release via Pitchfork, screenwriter-director Trank revealed why he chose the 43-year-old star to be involved in his project.

"Since I was 14 years old, El-P's music has been one of the most important creative influences in my life," he stated. "There's literally no greater honor for me than to collaborate with him today and bear witness to this next stage of his artistic journey."

El-P added that he too admires Trank and everyone behind the anticipated new movie. El-P and his Run The Jewels partner, Killer Mike, also contributed to the soundtrack of Edgar Wright's action movie Baby Driver. The film went on to receive a couple of nominations from the 2018 Academy Awards.

Tom Hardy Transforms Into Al Capone

Meanwhile, Hardy has previewed how his version of the notorious mobster would look like on the big screen. Over the years, the 40-year-old has gone through transformations, but none made him as unrecognizable as his role in Fonzo. Wearing prosthetics, the Dunkirk star and director Trank posted a couple of photos on Instagram.

FONZO @tomhardy @bronstudios A post shared by  Josh Trank (@joshuatrank) on Apr 12, 2018 at 11:42am PDT

Fonzo does not have a release date as of yet.