Lin-Manuel Miranda is making his mark on the digital song charts with an important single…

The 38-year-old Puerto Rican singer, actor and Broadway star’s March for Our Lives charity single with Ben Platt “Found/Tonight” appears headed for a No. 1 debut on Billboard‘s Digital Song Sales chart (dated March 31).

Based on preliminary data for next week’s charts, the song, released on March 16 via I Know Another One/Atlantic Records, could launch atop Digital Song Sales with more than 50,000 downloads sold in the week ending March 22.

It should also draw more than 1 million U.S. streams, sparking a mid-chart debut on the streaming-, airplay- and sales-based Billboard Hot 100.www.youtube.com, or enable JavaScript if it is disabled in your browser.

The single is a mash-up of two songs from the artists’ respective Tony-Award-winning musicals: Hamilton‘s “The Story of Tonight” and Dear Evan Hansen‘s “You Will Be Found.”

Miranda wrote and starred in Hamilton, while Platt starred in Dear Evan Hansen, whose “Found” was written by Benj Pasek and Justin Paul.

A portion of all proceeds from “Found/Tonight” benefit the March for Our Lives initiative, and Miranda and Platt will perform the song at the March for Our Lives in Washington, D.C., on Saturday.

The event, one of 800 marches that will take place that day, will stream live on Twitter, Facebook and YouTube.

Miranda is aiming for his second Digital Song Sales No. 1, following fellow charity single “Almost Like Praying,” featuring Artists for Puerto Rico.

Released in response to Hurricane Maria, the track debuted atop the chart dated October 28, 2017. It also became Miranda’s highest-peaking song (of three) on the Hot 100, debuting at its No. 20 peak that week.