STYLE POLL: Kim Kardashian vs Britney Spears

Two sexy ladies, one sexy dress.

Both Kim Kardashian, 30, and Britney Spears, 29, stepped out in the same Herve Leger dress over the weekend.

The E! reality star, who was dining with beau Kris Humphries at Miami's Zuma on Friday, accessorized her look with Fendi shoes. Spears added a rock 'n' roll edge by pairing the sexy dress with black boots at 102.7 KIIS FM's Wango Tango concert in L.A. the following night.

Who wore Herve Leger best?
Kim Kardashian
Britney Spears

View Results

Credit: Us Magazine

Britney Spears Tells Us About Marriage Plans!

She's already been married twice, but is Britney Spears ready to become a bride once more for love Jason Trawick?

As she enjoys blockbuster sales and the strongest reviews of her career for seventh studio album Femme Fatale, Spears, 29, tells all in the new Us Weekly (out Wednesday) about finding Mr. Right in agent Trawick, 39, her boyfriend of over two years.

"We have such a great time together!" Spears tells Us exclusively. "He makes me laugh, and we are so comfortable being ourselves."

Marriage plans? "Maybe," she teases. "Never say never!"

Indeed, a family source tells Us that the blissful pair will likely wed. Trawick, after all, the source says, "was one of the only people who stuck by her through everything," including Spears' dark 2007 and early 2008 -- when she lost custody of her sons Sean, 5, and Jayden, 4, to ex Kevin Federline, and was briefly admitted to a psychiatric hospital.

"[Jason] was someone she felt she could be her true self with. [Marriage] is what they talk about and the direction they're going in," the insider says.

Whatever and whenever their nuptial plans, one thing is certain, Spears tells Us: "I've never been happier!"

Credit: Us Magazine

Christina Aguilera: “Huge Supporter” of Britney

While promoting her new NBC show The Voice with producer Mark Burnett, judge Christina Aguilera took time out to say nice things about fellow pop star and old friend Britney Spears.

When asked about sending Britney a congratulatory tweet about her her new CD, Christina said, “You know what I haven’t heard the whole thing in it’s entirety (Femme Fatale). I’ve been really hard at work on this show. I haven’t had quite the chance to go through the whole thing.”

“But I am a huge supporter of her in light of the fact that both of our careers started off together and are still going and going strong,” she explained. “I just think at this point in the game it’s extremely important to be supportive of fellow artists and especially females who get pitted against each other and torn apart. As an old friend of mine from the Mickey Mouse Club, I think it’s important at this stage in the game to show my support.”

Credit: OK! Magazine