Kate Moss & Pete Doherty

Kate Moss joined partner Pete Doherty on stage and, quietly, sung a song with him.

The model took to the stage at the Music Factory in Carlow, Ireland, where the singer was playing a small show.

As he approached the end of his set of Babyshambles songs, he nodded to Moss and she nipped past security staff.

She then took a microphone and, with a cigarette in her other hand, began singing the words to 'La Belle Et La Bete', meaning "beauty and the beast".

According to the Daily Mail, she shook her hips and moved her legs in time to the music, but the sound of her voice was mostly drowned out.

Moss then returned to the side of the stage and watched and photographed Doherty, according to the report.