New York's PS22 Chorus have performed for everyone from Beyoncé to Rihanna, but their most recent tribute is by far the most emotional yet.

The famous public school choir, which sees a new group of fifth graders singing every year under the guidance of chorus director Gregg Breinberg, dedicated their final performance of the school year to a very special person, their teacher Adriana Lopez.

Adriana is currently undergoing treatment for breast cancer, and the choir wanted to show their love and support by singing her a very fitting song, I'm Gonna Love You Through It by Martina McBride. The lyrics of the song tell the tale of someone struggling with cancer, with lines like, "When you're weak, I'll be strong… When you let go, I'll hold on." 

Unsurprisingly, Adriana was in tears as she watched her students sing. Speaking about her battle she said, "It's not easy, but I will get through it because I have wonderful friends at this school."

The PS22 chorus, based at Public School 22 in Staten Island, hit the spotlight back in 2006 when they caught the eye of celeb blogger Perez Hilton, and since then they have recorded hundreds of covers from a variety of artists and have performed at Madison Square Garden and The White House among other locations.