Beyonce is one hot mama and she's proving that more than ever on the cover of GQ's "Sexiest Women Of The 21st Century" issue. Not only does she have the body to pull off barely-there, leopard-printed panties and some major underboob, but she's clearly got the confidence to back it up.

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“I now know that, yes, I am powerful. I’m more powerful than my mind can even digest and understand," Beyonce told GQ when asked about her tremendous influence.

We'd say so. After taking some time off to relax and give birth to her adorable daughter with Jay-Z, Blue Ivy, the 31-year-old superstar will be thrust back into the spotlight this year with her highly anticipated Super Bowl Performance and a rumored new album. But she's been tireless in working for this dazzling and seemingly endless career since she was a little girl -- and she isn't shy about admitting it.

“I worked so hard during my childhood to meet this goal: By the time I was 30 years old, I could do what I want. I’ve reached that. I feel very fortunate to be in that position. But I’ve sacrificed a lot of things, and I’ve worked harder than probably anyone I know, at least in the music industry. So I just have to remind myself that I deserve it,” Bey told GQ.

The "Love On Top" singer's younger sister, Solange Knowles, cosigns, telling the glossy that she remembers Beyonce's relentless rehearsing at the tender age of 10.

"I specifically remember her taking a line out of a song or a routine and just doing it over and over and over again until it was perfect and it was strong," Solange said. "When everybody else was ready to say, ‘Okay, I’m tired, let’s take a break,’ she wanted to continue—to ace it and overcome it.”

Sounds like the kind of work ethic that affords you the superstar status Beyonce has become accustomed to.

And lest we forgot how HOT she is (though that's doubtful), check out a few more photos photographer Terry Richardson snapped of Beyonce from her GQ editorial -- and a look at the sexy cover, again. Wowzas, right?
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  • Beyonce back in the Destiny's Child Days at the 2002 Grammys

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  • B rocked a shimmery bustier dress to the Billboard Awards back in 2003

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  • Loving her lingerie a little too much at the 2003 Essence Awards

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  • Beyonce the barbarian at the 2003 MTV Europe Music Awards

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  • A strange print for a night on the red carpet back in 2003

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  • Beyonce looking like a hot, gold mess at the 2004 Grammys

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  • Pretty in pink at the 2004 NRJ Music Awards

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  • Beyonce's the ultimate glamour girl, especially in this metallic romper from 2004

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  • Not the right silhouette for this famously curvy star, 2005

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  • Beyonce does vixen velvet in this sultry black gown worn to the 2005 Oscars

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  • Matching with her Destiny's Child mates at the 2005 BET Awards

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  • Not so red carpet ready in this yellow frock from 2005

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  • Beyonce donned this intricate gown to the 2006 MTV VMAs

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  • A sexy, sophisticated white gown worn to the 2007 Academy Awards

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  • Effortlessly gorgeous at the U.K. premiere of "Dreamgirls" in 2007

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  • B wore this appropriately revealing ensemble to the Sports Illustrated Swimsuit Issue event back in 2007

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  • Beyonce's a stunner in this black, embellished dress from 2008

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  • And at the 2008 Grammy after party thrown by Sony/BMG

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  • Beyonce's ice blue gown from the 2008 Grammys

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  • At the Kennedy Center Honors, 2008

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  • Dazzling in diamonds, 2009

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  • Beyonce looked fierce and fabulous at the 2009 BET Awards

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  • B donned this nude-colored gown to the 2010 Grammys

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  • Bold and beautiful at a benefit last year

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  • At a Lorraine Schwartz event in 2010

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  • A vision in Pucci at The Met Gala this past May

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  • Beyonce performing at the 2011 Glastonbury Music Festival

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  • On GMA this past July

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  • Showing off her baby bump at the 2011 MTV VMAs

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  • Performing in a sequined jacket at the 2011 VMAs

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  • Stepping out in Paris in June 2012

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