Today, between 10 a.m. and 3 p.m., a bone marrow drive will be held at the Minskoff Theatre, where the Lion King is performed. That's because 11-year-old Shannan Tavarez, who made her debut as a young Nala in the musical last year and was diagnosed with AML leukemia in April of this year, is in desperate need of a bone marrow transplant. Because it's harder for multiethnic people—Shannon's parents are African-American and Hispanic— to find matches, the drive is a way to expand the potential pool of donors.

If you decide to check out the drive, this is pretty much what happens: You fill out paperwork and the inside of your cheek gets swabbed. The swabs are then sent for processing; if you're a match, you'll be contacted later. Tavarez, who is from Queens and says she loves singing, acting, playing with her Wii and watching Glee, is currently at Schneider Children's Hospital on Long Island.