turns 25 years old today!

The Barbadian beauty has definitely blossomed into a young woman -- everything from her personal style to her music has matured.

But, RiRi's also had some very public trials and tribulations, in addition to some pretty controversial moments over the last few years.

Most recently, she attended the 2013 Grammys with her abusive-ex, Chris Brown, and defended the twosome's relationship in the February issue of Rolling Stone.

Personal drama aside -- we're excited to see what's next for the "Stay" singer. Click "Launch Gallery" above to see Rihanna's sexiest TwitPics!

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