Selena Quintanilla-Pérez, the beloved Tejano singer, sadly passed away in 1995 at the age of 23. She did not receive a kidney transplant.
It's important to note that kidney transplants are a serious medical procedure and are only performed when absolutely necessary. Selena's untimely death was due to a gunshot wound, not a kidney ailment.
Therefore, the question of how old Selena was when she got her kidney is not applicable.