By Jocelyn Vena and Sabrina Rojas Weiss

When we saw how hot Rihanna looked in her tuxedo at the Metropolitan Museum of Art Costume Institute gala on Monday night, we were reminded that she's certainly not the first chica to turn fancy menswear into an androgynous fashion statement. Here are some of our favorite ladies to go black-tie in the public eye:

Celine Dion: For the 1999 Academy Awards, the diva mixed things up by opting for white and then, apparently styled by by Kris Kross, she wore the jacket backwards! Let's not even get started on the hat.

Madonna: Of course, what Madonna wore at the 2005 VMAs was greatly overshadowed by the fact that she made out with Britney Spears and Christina Aguilera.
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By Nicole Guanlao and Whitney Benta

Lady Gaga's concert at Terminal 5 in New York on Saturday was quite a spectacle. The "Poker Face" singer went through six costume changes, but three ensembles really stood out in our minds: She donned an outfit made entirely of plastic bubbles while playing on a piano filled with bubble-like balls; she also wore a yellow futuristic dress with pointy shoulder pads, and a Britney Spears "Toxic"-inspired flesh-tone leotard with a police hat.

During the show, Gaga gave a shout-out to her good friend Marc Jacobs. Marc wasn't in the building, but his presence was definitely felt: For Gaga's fifth outfit change, Jacobs created custom Louis Vuitton Graffiti leggings for her dancers, and Gaga rocked a pair of Louis Vuitton stilettos to match. One day we only hope to have friends that design for Louis Vuitton — clearly Lady Gaga is having the time of her life!

Not only can she pull off the craziest styles, but she's quite the performer too. Read more...

Who doesn't love the magic of a Madonna and Britney Spears duet? Right. No one. So you can only imagine how excited fans were about a rumor that Madge might show up at Brit's big Nassau Coliseum show later this month.

The rumor was started by someone claiming to be Britney's stylist. David Alexander spilled details of the supposed super secret duet to celebrity weekly In Touch. "She'll be singing with Madonna in New York. It will be 'Get Together' and 'Trouble.' So, together the song is called 'Lose Control,'" Alexander told the magazine, implying a mash-up of the singers' hits. The alleged stylist added that Madge might also join Britney for one of her L.A. shows in April. "It's supposed to be a surprise!" Read more...

Her name might not be Rio, but she sure danced like she was on a pile of sand.

Madonna took her Sticky & Sweet Tour down to Rio de Janiero on a rainy night last weekend, but her footing onstage was neither sticky nor sweet: Dressed in an outfit that might have been more age-appropriate for her 12-year-old daughter Lourdes, 50-year-old Madonna took a pretty awesome nosedive.

Rain on concert days is not Madonna's friend, as anyone who's seen "Truth or Dare" can attest. And after her spill here, she did her best to pass off the fall by writhing around on the stage. This, of course, only made things more awkward. Read more...

Even if you've spent the past six months traveling with an actual circus, you are probably aware that Britney Spears' new album is called Circus and that it hits stores Tuesday.

You are probably also marginally aware that this is her big comeback record (again), and as such, she is back (or so say the legions of her disturbingly dedicated fans). Or that she is fierce and free and, of course, better than ever. And all of those things are fine and good and — to varying degrees — sort of true. But there is one thing you probably aren't aware of ... something shocking and, to be honest, sort of awful: Britney has started wearing a top hat in public. You know, just like a ringmaster. Because her album is called Circus. Get it?
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It was a pop star summit for the ages: Britney, Justin and Madonna, all on the same stage on the same night. The Material Girl made it happen Thursday night at her Dodger Stadium show in Los Angeles — only, Brit and JT never actually appeared together. It's a start, anyway.

Read more about Madonna's show with Britney and Justin here.

Madonna has been a lot of things over the years: urban cowgirl, dancing queen, electro empress, pop priestess and ill-advised rapper.

But indie rocker? Madonna biographer Andrew Morton has found a 27-year-old tape of some of the singer's earliest recordings, chronicling the era when the future chameleonic media maven was a struggling dancer living in the basement of a Queens, New York, synagogue with brothers Ed and Dan Gilroy, the latter of whom was Madonna's boyfriend at the time. Read more...

By Sarah Muller
Madonna. Is. My. Hero.

It almost sounds like a cliché nowadays. (What hasn't the lady done? Who hasn't she influenced?) I've truly admired her work since I was way too young to understand her not-so virginal floor grinding back in the early '80s. I distinctly remember asking my mom, "What's a virgin?" soon after. That didn't go over so well — my mother tried to turn off my MTV! However, given my current job, it's pretty clear that didn't do much good. I was hooked for life — cone halters or cowboy hats, Guy Ritchie or no Guy Ritchie.
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Two flamboyant tours stopped in New York City last weekend: Madonna's Sticky & Sweet Tour and Of Montreal's latest stage show. Both artists share a flair for the dramatic, elevating their concerts to epic theatrical extravaganzas. But there's one major difference: ticket price. The best seats at MSG went for $350, while Of Montreal charged only $23 for general admission at Roseland Ballroom!

So any Madonna fans out there who are strapped for cash, here's why you can — and should! — check out Of Montreal's latest gigs and still get a Madgetastic show for a fraction of the price. Here's a breakdown of which show is better at what:

COSTUME CHANGES!
Madonna: Lots of black. Lots of top hats. Lots of shorts. Also, there's whatever this is.

Of Montreal: Frontman Kevin Barnes dresses like a cardinal! Then, he's a minotaur! He's in a bikini bottom! He's wearing a giant fanny pack! He's covered in fake blood! He's smothered in whipped cream! He's dressed like Prince! Shall I continue?

Advantage: Of Montreal. Half the fun of a Madonna concert is seeing what she's decked out in, but her latest wardrobe is a far cry from the Gaultier-designed Blonde Ambition garb. Stick with Of Montreal's wild and outrageous "WTF ARE THEY WEARING?!?" appeal.
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By Joe DeShano

The last time I saw Madonna, I was in eighth grade and she was gyrating on a bed. Well, when her Sticky & Sweet Tour hit New York's Madison Square Garden on Saturday night, the show was a little tamer — and by little, I mean a lot, but that doesn't mean there weren't a few surprises. Pharrell came out early in the show for "Beat Goes On" — of course, it's supposed to be Kanye West accompanying her for that song, but OK, I'll go with it.

Big stars like Madonna bring out the celebs not only onstage, but in the audience too: And there were Chris Rock and Kelly Ripa, front and center. Kelly seemed to enjoy the show a bit more than Chris, who looked like he was serving some kind of sentence just being there.
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