Just five weeks after giving birth to twins, Jennifer Lopez stepped out last night looking, svelte, with little sign left of the massive 50lb she gained during her pregnancy.

Jennifer, 38, took to the red carpet in a draped black Grecian dress at the premiere of the Rolling Stones new rockumentary 'Shine A Light' which revealed the singer is clearly almost back in to her pre-pregnancy best.

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Svelte: Despite claiming she was in no hurry to lose her baby weight she appears to have lost quite a bit in the five weeks since giving birth

Jennifer looked the epitome of glamour with her trademark glowing make-up, hair swept up in a chic bun, and black body-skimming dress.

After gaining a substantial amount of weight during her pregnancy Jennifer recently revealed she is in no hurry to lose her baby weight.

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Radiant: Jennifer looks healthy and glowing, while husband Marc appears to be suffering the effects of some sleepless nights

But the she appears to have taken some steps to shed some of the weight she has gained, as she looked extremely slender.

Casual chic: Jennifer seen leaving the hairdressers after some pampering on the weekend

Last week she told OK! magazine: "I gained a good amount of weight, which I was focused on because twins can sometimes have a low birth weight.

"I gained 45-50lbs, a lot for my frame, but for twins it's right on."

The 38-year-old said she was proud of her post-pregnancy figure.

She added: "It's amazing how your stomach goes goes boop and it's this jiggly mass.

"I even play with my little leftover belly."

Yesterday, she was seen leaving a hair salon in New York dressed somewhat more casually dressed, but still looking lean in a pair of flared jeans and a cropped white jacket.

Lopez and Anthony are said to have made £3million when they sold rights to the first pictures of the twins to America's People magazine.

The new mother revealed that she is a besotted by her two infants. "Having children is the biggest thing that can happen to a woman," she said.

"You win an Oscar, get nominated for a Golden Globe - you know, whatever things you think are big, I can't even think of anything that can match the miracle of giving birth and having your own child.

"I've been very career-orientated my whole life and very focused on my own world and my own life, and all of a sudden the focus just shifts."

On the differences between the twins, she said: "Emme is a total girl. You take off her clothes and she covers up, and her hands are very feminine.

"And she has more hair than him. And he is like a tank, with these little arms."