Designer Marc Jacobs has said his pal Victoria Beckham is “working her a** off” with her clothing collection.

Victoria, 35, has her own clothing line and her dresses have been spotted on a number of other celebs such as Jennifer Lopez and Elle Macpherson.

Talking about celebrity fashion lines, Jacobs said: “I’ll reserve judgment on celebrity lines in general, but I think Victoria’s in a different category.”

He added to UK newspaper The Times: “She’s really working her a** off. She knows her body very well and she’s making something that really appeals to women who want beautifully made, figure-conscious clothes that aren’t vulgar.

“I wouldn’t say she asks my advice, but she’s always keen to learn. She’s lovely.”