Marc Jacobs loved working with Victoria Beckham because no one expected it.

The Louis Vuitton designer cast the former Spice Girl in a campaign for his eponymous brand in 2008 and caused controversy with an advertisement which saw just her legs coming out of a shopping bag but Marc revealed he chose her because it was so unexpected.

He explained to Germany's Interview magazine: ''Victoria would never have been the type of person that I think anyone would have thought of as our customer. Victoria liked the idea very much and was totally into it so I said, 'Let's treat her like she's a kind of product.' Because she is, she's created herself... And the first image you saw was just her legs coming out of a shopping bag.''

Former heroin addict Marc also revealed he gets upset when people refer to him as a ''fat heroin addict'' because he was thin when he was on DRUGS.

The reformed designer explained: ''That was the stupidest thing I ever heard because first of all I was never a fat heroin addict, I was a skinny heroin addict - and I got over that luckily. I was fat when I stopped doing drugs, not while I was doing drugs. I don't know anyone who's fat when they're doing drugs.''