Michael Buble's new wife Luisana Lopilato has stripped off to model lingerie in a new U.K. advertising campaign.

The Argentinian beauty, who wed singer Buble earlier this year, has been unveiled as the new face of Ultimo underwear and she's disrobed to show off the sexy intimates in a revealing new photoshoot.

The shots include snaps of Lopilato lounging on a grand piano, wearing a lacy bra and panties.

Previous Ultimo models include model/actress Kelly Brook, former Spice Girl Melanie Brown and supermodel Helena Christensen.

Check out more sexy pics at Ultimo.co.uk!