Get loud, everybody — today is Rihanna's 24th birthday! "Ahhhhhhh ALL MY BDAY wishes from my DM to my TL!!!! KRAY! I truly love u guys, thank you so much #RihannaNavy for makin me feel special," RiRi excitedly tweeted to fans while hard at work in London. While the pop star may have already celebrated at her birthday party last Monday night (with a guest list that surprisingly included Chris Brown), we're honoring the stunning beauty today with a roundup of 24 of the Talk That Talk singer's most incredible photos ever. (Hey, she wasn't made Esquire's Sexiest Woman Alive for nothin'.) So while we enjoy a piece of birthday cake, cake, cake, check out our picks of Rihanna's Hottest Photos Ever. Then let us know below, or on Facebook and Twitter, if your fave made the cut.