Kate Moss GastonMossCavalli.jpgMiley's super-hot BF Justin Gaston has landed a big new modeling gig. Justin will be appearing with supermodel Kate Moss in an upcoming campaign for Just Cavalli.

Justin's agent tells X17online, the ads were shot at a house in the Hollywood Hills and feature Justin and Kate hanging out by a pool. The ads will start appearing in magazines next spring. We bet they're going to be H-O-T!