During her Memorial Day weekend post-baby comeback gigs, Beyonce announced to her fans that was going to be getting wasted, once the gig was over. This was no rock and roll tale of excess from the new mum, though, she was simply celebrating having lost 60 pounds in her efforts to lose her baby weight and get in trim for her concerts.

People magazine have reported that Beyonce showed no hesitation in telling her fans how tough it's been getting back in shape since having Blue Ivy Carter. "Y'all have no idea how hard I worked!" the 30-year-old told her fans gathered at the concert in Revel Beach's Ovation Hall on Saturday night. "I had to lose 60 pounds. They had me on that treadmill. I ate lettuce! Now tonight I'm gonna get chocolate wasted!" All that hard work had clearly paid off, as Beyonce was looking as svelte as ever, wearing a custom made Ralph and Russo outfit. Comprised of a fringed two piece, with a bare midriff and adorned with Swarovski crystals, it was not a wardrobe choice for someone lacking confidence in their physique.

It's a good job she made the effort, too, as she had some pretty high profile guests in attendance, in the form of Michelle Obama and her daughters Malia and Sasha. Beyonce's made no secret of how much of a fan she is of Michelle (in April, she wrote an open letter to the First Lady to say she was a fan) so it's good to know the feeling's mutual.