London: Pop star Fergie gave her fans a New Year's Eve to remember. She performed in a skin-hugging micro mini dress and revealed her tanned thighs.

The “Fergalicious” singer, who had to gain weight for her film “Nine”, was performing in Las Vegas. Now, she is trying to lose the excess weight in time for her wedding to actor Josh Duhamel Jan 10.

“It's hard. I've been working out every day,” Fergie told People magazine, reports thesun.co.uk.

She is doing “a lot of hiking and doing a bunch of sit-ups” and “trying to maintain and stay healthy.”