More than 116,000 people are currently waiting for an organ transplant.
Earlier this year, when Selena Gomez needed a kidney transplant, one of her friends came through with a life-saving donation.
Actress Francia Raisa was starring on ABC Family's "The Secret Life of the American Teenager" when she met Gomez during a children's hospital event in 2007, and they have remained close friends ever since. In 2013, Gomez underwent chemotherapy to treat lupus, something she went public with two years later. As a result of her illness and treatment, Gomez needed a new kidney.
Naturally, Raisa offered one of hers.