Ariana Grande and Justin Bieber have recorded a new single for charity titled 'Stuck With U'.

The superstars, who are both 26, are set to give all of the proceeds to the children of first responders amid the COVID-19 pandemic.

Bieber wrote on his Instagram: "Here is the announcement. Very excited because we have finally done it. I’m releasing a new song #StuckwithU with my friend @ArianaGrande next Friday on May 8th.

"Working with our family at @sb_projects and universal music group proceeds from the sales and streams of #StuckwithU will fund grants and scholarships for children of first responders who have been impacted by COVID-19 in partnership with the First Responders Children’s Foundation @1strcf."

Grande added: "Stuck With U by me and @justinbieber. May 8. grateful to announce that my friend and i have partnered with @1strcf and @sb_projects on this release. proceeds from the streams and sales of #stuckwithu will be donated to first responders children’s foundation to fund grants and scholarships for children of healthcare workers, emergency medical technicians (EMTs), paramedics, police officers and firefighters serving at the front lines during the global pandemic.

"All net profits from the sales and streams of 'Stuck With U will fund grants and scholarships for children of first responders who have been impacted by Covid-19 in partnership with the first responders children's founddation."

Braun wrote: "Today in keeping with our promise to always pay it forward we announce our initiative at @sb_projects to release multiple singles this year for charity in these trying times.

"Grateful to Ariana and Justin for kicking it off with this amazing song #stuckwithu. Proceeds from the streams and sales of 'Stuck with U' will be donated to First Responders Children’s Foundation to fund grants and scholarships for children of healthcare workers, emergency medical technicians (EMTs), paramedics, police officers and firefighters serving at the front lines during the global pandemic.

"Thank you to Universal Music Group, @defjam @republicrecords @spotify @applemusic @amazonmusic @freddywexler @skylerstonestreet @iamwhitphillips @joshgudwin @gianstone @shaunanep @allisonjamiekaye and everyone on the @sb_projects team and everyone who helped make this happen. And most of all thank you again to @justinbieber and @arianagrande for always stepping up for others!"

The pop stars last teamed up for a performance during Grande's headline set at Coachella last year.