Selena Gomez has been spotted on a movie set just hours after revealing she underwent a kidney transplant due to her battle with lupus. Gomez, 25, took to Instagram Thursday morning to announce that her friend, actress Francia Raisa, donated her kidney to the singer to save her life. "She gave me the ultimate gift and sacrifice by donating her kidney to me," the 'Spring Breakers' star revealed. The news solves the mystery of why Gomez has kept such a low profile this summer. #InsideEdition
