** OFFICIAL UPDATE ** Kate Middleton's Wedding Dress designed by Alexander McQueen's Sarah Burton

Kate Middleton's wedding dress designer is Alexander McQueen creative director, Sarah Burton, according to reports in British newspapers.

While McQueen officials are issuing denials -- which they would be obliged to do, even if it were true -- sources told the U.K.'s Telegraph that Burton has been chosen for her discretion, talent, and quirky, feminine take on elegance.

The 36-year-old was promoted to the top design job after McQueen himself committed suicide last year. First lady Michelle Obama caused a stir when she wore one of Burton's McQueen designs to a State Dinner for Chinese president Hu Jintao in January.

London's Sunday Times is also reporting McQueen's CEO Jonathan Akeroyd gushed to a colleague the fashion house had won the coveted commission for Middleton's April 29 wedding to longtime love, Prince William.

Burton's work first caught the royal bride-to-be's eye in 2005 when she created an off-the-shoulder wedding dress for Sara Buys, a fashion journalist married to Tom Parker-Bowles, the son of her future stepmother-in-law, the Duchess of Cornwall, according to the Telegraph.

Burton denied the reports regarding her involvement to Vogue U.K.: "I'm not doing it." Akeroyd also denied the rumors saying: "No, not at all. I'm the CEO, I would know if we were doing it."

The commission has also been rumored to belong to Bruce Oldfield, a favorite of the late Princess Diana and designer of Queen Rania of Jordan's wedding dress.

Even if the latest rumors are true, Burton and company wouldn't want to have the exalted McQueen name stepping on a future queen's well-shod toes.

The designers of Princess Diana's 1981 wedding dress, David and Elizabeth Emanuel, repeatedly denied their role as royal couturier.

Middleton has made it clear her dress designer is to remain a closely guarded state secret until her wedding day, so she can surprise her fiancé as she walks down the long, dramatic Westminster Abbey aisle.

Last week, St. James Palace announced the highly anticipated dress details would be released first on its own Web site, the Royal Wedding.

Daily Telegraph Fashion Editor Hilary Alexander told London's Daily Mail if the Burton-McQueen news is true, it's a welcome relief for fashion: "It's desperately in need of an injection of fabulousness in the wake of the whole John Galliano scandal."

Meanwhile, Middleton has given her sartorial nod to an Italian designer whose frocks will probably be selling out today: Luisa Spagnoli, whose fans include screen legends Sophia Loren and Gina Lollabrigida, is being credited by the Daily Mail with creating the $800 red suit Middleton made a scarlet splash in during her recent appearance at Saint Andrew's University.

Plus, read about the fascinating British royal seductress whose vintage lingerie is about to go on the auction block.