Rihanna in Hawaii wearing Charlie By Matthew Zink Andie peach bikini

Rihanna is in Hawaii with her girlfriends. Rih’s birthday is tomorrow but she’s already celebrating! Her BFF Melissa Forde instagrammed this pic of the singer rocking another sexy Charlie by Matthew Zink bikini. The Andie two-piece is a string bikini with a peach grid print and gold hardware. The Spring 2013 swimsuit is available from Charlie’s online store for $330.

images via melissa forde, charlie by mz