Johnny Nunez, WireImage
The rappers visited DKMS America -- the world's largest non-profit marrow donor center -- where they documented the donor process for Thisis50.com "My son is just a couple years older than Shannon and I can't imagine if his life was needlessly cut short when there is someone out there that could save him," 50 said in a statement. "Shannon's chances of finding a matching donor are slim because she's African American and Dominican and minorities are underrepresented in the national registry," he continued. "Everyone, regardless of their race or ethnicity, deserves a fair chance at life. Registering to become a bone marrow donor starts with a cheek swab but it's more than that. It's a commitment to save a life."
Early in July, singers Rihanna and Alicia Keys rallied fans in an attempt to locate a donor for the young star, who previously played the role of young Nala in 'The Lion King' on Broadway. After experiencing mysterious pains in her leg, Tavarez was diagnosed with an acute form of leukemia and she has remained in a Long Island hospital facility since then. Check out 50's educational bone marrow video below.