Rihanna pays tribute to superfan who lost her recent battle with cancer.

The Grammy award-winning singer honored her fan named Monia via her Instagram page. 

"Navy Angels! This Christmas, we lost a beautiful spirit who was such a pillar of strength to us! Most of our friendship she’s spent in a hospital or doctor’s office! This picture was just a few months ago, she looked at me and said “Rih the cancer is back” I’ll never forget the fear in her eyes this day! Still she pushed forward, fighting the fight everyday with the Navy behind her supporting her every step of the way! We are all heartbroken about this!!! You will never be forgotten! Love you my angel @moniasto fly in peace," she wrote in one of the posts.

This was Monia's third battle with cancer.