Christina Aguilera's style is just as good as it was in 2003. Aguilera, 44, stepped out in a vintage Versace dress that she once wore in 2003 while posing at a photocall for Burlesque: The Musical in London - in which her own songs are featured - on Monday, July 21. The lime green design featured a cowl neckline that cascaded into a structured corset. The bodice laced up with a thick matching ribbon, which Aguilera tied in a knot at the bottom. The number was finished with a ruffled high-low skirt.