As you may or may not know, Andrew McMahon (Andrew McMahon in the Wilderness, Jack's Mannequin & Something Corporate) was diagnosed with Leukemia in 2005, and a bone marrow donor saved his life.
He started the Dear Jack Foundation to support adolescents and young adults who have been diagnosed with cancer, and at his shows always gives the opportunity for fans to sign up for the Bone Marrow registry, to potentially, hopefully, save more lives.
Andrew recently introduced a bone marrow donor to the recipient whose life he saved on stage at a show...and it's the best thing you'll see on the internet all week.
(I'm not crying, YOU'RE crying...)
Find out more about the bone marrow registry, and sign up on the official Be The Match website.