Pop queen Selena Gomez has made some shocking revelations through her Instagram post. The 25-year-old singer has revealed that she underwent kidney transplantation which is also the reason for taking a break from all her commitments last summer. She wrote, "I'm very aware some of my fans had noticed I was laying low for part of the summer and questioning why I wasn't promoting my new music, which I was extremely proud of. So I found out I needed to get a kidney transplant due to my Lupus and was recovering. It was what I needed to do for my overall health."

Guess who was her organ donor? Her best friend and actress Francia Raisa of 'The Secret Life of the American Teenager fame. "And finally, there aren't words to describe how I can possibly thank my beautiful friend Francia Raisa. She gave me the ultimate gift and sacrifice by donating her kidney to me. I am incredibly blessed. I love you so much sis," she said.

The "Hands to Myself" singer also shared three photographs—one with her donor friend from the hospital bed and rest two with the surgery scars. She further pointed out that she will be sharing morning information of her recovery process soon. "I honestly look forward to sharing with you, soon my journey through these past several months as I have always wanted to do with you. Until then I want to publicly thank my family and an incredible team of doctors for everything they have done for me prior to and post-surgery," she added.

Earlier in 2015, Selena revealed that she was diagnosed with lupus and has started chemotherapy for the autoimmune disease. She further suffered from anxiety, panic attacks and depression due to her lupus treatment. However, that hasn't stopped the singing sensation from creating awareness on the disease. She wrote, "Lupus continues to be very misunderstood but progress is being made. For more information regarding Lupus please go to the Lupus Research Alliance website: www.lupusresearch.org/--by grace through faith."