After the tragic shooting at Marjory Stoneman Douglas High in Parkland, Florida last year, students from the school founded a nonprofit advocacy organization and developed the instrument of hope.
The instrument is a trumpet constructed from bullet casings, and it's been touring the country since its creation.
Its latest stop was at the Broadway revival of Oklahoma!, where the production's musical director—Nathan Koci—played a version of "Out of My Dreams" after the show's matinee.
Watch the moving performance below:
The tribute touched many of the people who viewed it.
Thanks to Oklahoma! and the activists from Parkland for reminding us to remain hopeful.














Jim Watson/AFP via Getty Images

u/Tower-Junkie/Reddit
u/Veronome/Reddit
u/Gyorgy_Ligeti/Reddit
u/JV0/Reddit
u/invyros/Reddit
u/npc042/Reddit
u/Dead-O_Comics/Reddit
u/FantasticName/Reddit
u/Odd_Needleworker3756/Reddit
u/mak05/Reddit
u/dantevsninjas/Reddit
u/Muroid/Reddit; u/ScarletSilver/Reddit
u/amomymous23/Reddit
u/Aintnobeef96/Reddit
u/Soapysoapie/Reddit
u/dagnyfication/Reddit
u/Stunning_Process8406/Reddit
u/CarevaRuha/Reddit
u/BewareOfGrom/Reddit
u/thankyoupapa/Reddit
u/SweetieDarlingXX/Reddit
u/snipsnap987/Reddit
u/palswithpikachu/Reddit
u/ProbablyMyJugs/Reddit