Paris Hilton dress hat blonde lax airport

Paris Hilton has secretly taped a cameo in Sofia Coppola's upcoming film The Bling Ring, X17online has exclusively learned.

The beautiful blonde heiress filmed her scene Tuesday at The Sayers Club in Hollywood before jetting off to Australia last night. Here she is at LAX in a sexy summer dress ... immediately after leaving the set.

A source on the set tells X17online exclusively that Paris was wearing a sparkling Swarovski crystal dress and Christian Louboutin heels. She was on set filming a scene with Gavin Rossdale and Emma Watson.

We're told Sofia and Emma were having fun snapping photos while posing with Paris.

Just a few years ago, Hilton was robbed of millions of dollars in jewelry and clothes from a group of high school students nicknamed "The Bling Ring." Other celebrities who were targeted by the group of young thieves included Orlando Bloom and Lindsay Lohan.

The Bling Ring is due to hit theaters next year. Can't wait to see Paris on the big screen!