Fair warning... This will have you in tears by the end of it. Happy tears. But either way they're coming.

 

The bond that students have with teachers is a very special one.

 

The PS 22 Chorus in Staten Island, New York sang Martina McBride's "I'm Gonna Love You Through It" to one of their teachers who was recently diagnosed with cancer.

 

It's absolutely incredible. Don't say we didn't warn you about those tissues.