Rihanna Instagrams Itsy-Bitsy Teenie Weenie Yellow Polka Dot Bikini Photo

07/09/2013 12:54 pm ET

Rihanna sure loves to share her bikini shots on Instagram (here, here and here), and today was no different.

A few hours ago, the pop princess posted a selfie where she's seen wincing at the bright sun sans sunglasses, wearing a tiny yellow bikini adorned with red guitars. She appropriately captioned it "Oh baby I'm a Roc StaR."

Rih is in Poland nowadays as part of her Diamonds World Tour. Over the weekend, the 25-year-old attended a Kings of Leon concert at the Heineken Open'er Festival and a video is now circling the Web in which she appears to be tipsy and hardly able to walk on her own following the show. The footage is grainy though, and it is unclear whether it is indeed Rihanna herself.

Hey, she did admit to being a rock star.



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