Stevie Nicks, formerly of Fleetwood Mac, said their rendition of the group's song "Landslide" brought her to tears. So now they're singing for her June 11 at Madison Square Garden.
"It is humbling," Breinberg said. "It is truly humbling. I went into this job to teach music. ... I mean, I shouldn't be having the opportunities I'm having."
The kids know they are part of something special. But next month, the music they make together will be just a memory. The fifth-graders will graduate, and most will go on to schools that don't have choir class, because so many music programs have been done in by budget cuts.
"It's heartbreaking," Breinberg said. "A lot of schools don't have music programs anymore. It's very upsetting.
"For some of them, [the program] means everything. It really does," he said. "Some of these kids, I truly believe this program will save their lives, 'cause they will go on and they will know they have something they're good at."