Pop/hip-hop trio Son Lux is on the brink of releasing its first new material since the 2015 album Bones, but they can’t do it alone. On March 21, the group posted a call on social media asking for people to lend their voices to a 400 person choir that will be included on a new song called “Remedy.”

Participants of the “Remedy” choir are given a PDF instruction sheet and two guide tracks made by band member Ryan Lott, all available on his website. The guide tracks feature piano accompanying Ryan’s vocals, with two different versions in higher and lower registers. Meanwhile, the PDF sheet provides rules and info on recording vocals for the song, as well as lyrics to sing:

Find your voice in the sea of surging bodies and breath

To form a melody, to form a melody

Free a song from their lungs, our children’s daughters and sons

To find a remedy, to find a remedy

Ooooh-oooh!

Ooooh-oooh!

To find a remedy

To form a melody

The lyrics are very meta, literally talking about singing in the choir that the band is crowdsourcing for the song. This concept is similar to previous Son Lux songs like “Change Is Everything,” where Lott sings about the process of turning his solo project into a band.

Son Lux was first started by Lott back in 2008 as a solo endeavor before officially becoming a band with the release of Bones, which introduced guitarist Rafiq Bhatia and drummer Ian Chang to the trio. The group is best known for its 2013 album Lanterns, with songs like “Lost It To Trying”—which was featured on the Paper Towns soundtrack—and “Easy,” which was later remixed by Lorde. Now that Son Lux is crowdsourcing a choir for its new song, it seems likely that a new release is on the horizon.

The deadline for the recording is by Monday, March 27 at 9 a.m. EST. With no release date given (and the guide tracks lasting only a minute and a half) it’s uncertain when the full track will be released. Until then, you can keep an eye on the lyrics to “Remedy” and check out the rest of Son Lux’s discography here on Genius.