Star produces single with Duran Duran about his ex

Justin Timberlake has written a song about his ex-girlfriend Britney Spears.

The single, Falling Down – which is co-written by British band Duran Duran – tells the story of a star who’s forced to check into rehab after spiralling out of control.

‘I suppose it’s loosely based on her,’ Duran Duran’s drummer, Roger Taylor tells US People.

‘But not only on one celebrity – just celebrity culture in general. A lot of young celebrities seem to disappear into rehab. So it’s kind of like, what could be happening in your wildest dream in that rehab centre?’

The video shows a Britney look-a-like – wearing over-sized sunglasses and skimpy top – checking into a drugs clinic while her hubby looks on calmly.

The troubled mum-of-two, 25, had a stint in Promises Malibu Alcohol and Drug Rehab Centre earlier this year.

SEE VIDEO of the Britney Spears look-a-like in Falling Down…