Christina Aguilera performs for Donald Trump (Credit: Sunday Telegraph, August 24, 2008)

CHRISTINA Aguilera has been asked by Donald Trump to be the sole performer at his lavish Dubai hotel launch - before it has even been built.

The sexy star will sing at a Bel-Air mansion for Hollywood's elite.

Gallery: Guests flock to Trump's party.

Stars have started arriving at an exclusive party to launch the Trump International Hotel & Tower Dubai tonight, thrown by Trump and His Excellency Sultan Ahmed bin Sulayem at a private estate in Bel-Air, the Los Angeles Times reports.

The long black limo guest list included Hilary Swank, Russell Crowe, Gov. Arnold Schwarzenegger, Orlando Bloom, Hayden Panettiere, Ali Larter, Brent Bolthouse, Kate Walsh, HBO honcho Colin Callendar, Wolfgang Puck, and more.

Early reports could not confirm which stars had actually attended.

Heidi Klum, Naomi Watts and Demi Moore turned out for the NY version June 23.

Christina Aguilera will perform, with DJ duties being handled by Fall Out Boy Pete Wentz.

The sultan is the founder-chairman of Dubai World, a holding company that has $80 billion-$100 billion in assets, including one of the world's largest port operators, a massive private equity house, retailer Barneys New York, and Nakheel, developer of the new hotel and Dubai's palm-tree-shaped man-made islands.

The hotel will be a 62-story, stainless steel and glass luxury hotel/residence masterpiece - which will be tallest structure on Palm Jumeirah and is expected to be completed in summer 2011.