RIHANNA dropped jaws in a sexy, plunging Giorgio Armani gown at the 2012 Grammy Awards on Sunday. See for yourself:

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Esquire’s “Sexiest Woman Alive” strutted her stuff on the red carpet in a revealing black Giorgio Armani custom gown, which featured a daring neckline, an open back, and a central split.

Rihanna paired the drop-dead sexy dress with black Christian Loubotin heels and accessorized with a gold Jimmy Choo clutch, a large gold cuff and gold snake armlet fron Neil Lane jewelry, a collection of gold rings, and layers of long, thin-chained necklaces.

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Did RIHANNA and CHRIS BROWN spend 4 hours alone together in a dressing room during a practice session for the Grammy Awards? Hollywood celebrity gossip tells us that the exes—who had a very volatile breakup—are getting friendly again… too friendly, perhaps.

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So they’ve been partying together, secretly talking and meeting up, and now they’re hanging out alone in a dressing room?

We just can’t put the Rihanna-Chris reconciliation rumors to rest, can we?

RIHANNA‘s been partying with CHRIS BROWN. Again. And this time they were seen at a Super Bowl Party in a West Hollywood Club? Coincidence? What do you think?

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Last month, Rihanna and Chris Brown were spotted at another party at a club. At the same time. But sources said Chris was with his girlfriend, Karrueche Tran that night. So we thought nothing of it at all. But then here they are again rocking it at another bash. Again. We know Hollywood’s a small town, but hey…weren’t there hundreds of Super Bowl parties all over the place this weekend?

Rihanna is continuing her never-ending hair evolution… she’s now a bleached blonde! The singer, who is well know for changing the color and style of her hair several times a year, has gone from kinky brown locks to a longer, shaggy bleached blonde ‘do.

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Rihanna is a hair chameleon—that’s just her thing. The star has gone from long red hair to black with blonde streaks to a buzzed undercut in the span of a few months… and now she’s gone blonde.

RIHANNA showed off her new TUPAC-inspired tattoo on Twitter a few hours ago. Check it out:

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Rihanna is obviously a fan of the late rapper, because she recently tattooed the words “THUG LIFE”—the name of the rap group formed by Tupac and his friends—on her knuckles.

The Barbadian singer posted the photo on her Twitter account today with the caption:

“♫ All these bitches screaming that 2pac back ♫ #THUGLIFE”