LISTEN: Selena Gomez, Britney Spears Among 24 Artists Featured on Pulse Shooting Charity Song, ‘Hands’

All-star pop musicians lend their voices in a tribute anthem to the victims of the Pulse nightclub shooting in Orlando, Florida.

Britney Spears, Meghan Trainor, Gwen Stefani and Jennifer Lopez are among the 24 artists featured on “Hands,” a collaborative charity song that will raise money for the victims of June’s mass shooting at an LGBT nightclub. Produced by Interscope Records and written by Justin Tranter, a co-writer of Justin Bieber’s, the single will issue funds through the Equality Florida Pulse Victims Fund, the GLBT Community Center of Central Florida and GLAAD to the victims’ families to cover costs for medical care, counseling, and education.

“Like the rest of the world I woke up to the news that morning and was horrified and sad and scared,” Tranter told Billboard, who has been an advocate for the LGBT community since coming out at the age of 14.

Billboard reports that the idea came to him a day after the shooting. Tranter was on the road with one of the track’s featured artists, Selena Gomez, on June 12 when the news from Orlando broke. He immediately signed on to volunteer at The Center Orlando, the area’s main LGBT community center.

“I called them and said, ‘If I fly up is there something for me to help with?'” explained Tranter. “They say, ‘We need as many hands as we can possibly get.'”

Read more about the process behind the song over on Billboard, and purchase the song to contribute to the charitable effort over on iTunes.