Cara posts heartfelt birthday message to Rihanna

Cara Delevingne has posted a heartfelt birthday message to her close friend Rihanna calling her an inspiration.

The singer turned 26 yesterday (February 20) and Delevingne posted a photo of the two of them together to her Instagram account with the message, "Happy birthday @badgalrir This picture means so much to me because it was the first time we met and you have been such an incredible friend ever since.

"You are such a strong and truly inspiring woman and I am so lucky to have you in my life! I love you boo and thank you for supporting me through so much."