VIDEO: Selena Gomez & Best Friend Open Up on Recent Kidney Transplant Operation

Selena Gomez and her best friend Francia Raisa, who donated a kidney to her recently, sat down for an exclusive interview with NBC's Savannah Guthrie to describe the emotional details that led to the procedure earlier this year.

The 25-year-old actress and pop star revealed in September that she had undergone a kidney transplant over the summer as a result of her battle with lupus. She credits Raisa with saving her life, sharing, "Because she did. That's it. I guess I got to the point where it was really kind of life or death."

Gomez revealed she had the transplant in an Instagram post that included a photo of her and Raísa, 29, holding hands and lying in side-by-side hospital beds following their surgeries. Watch the emotional interview below!