Richie loses 10 pounds from dancing

Richie is showing off her svelte figure after she lost her post-pregnancy fat.

Los Angeles: Socialite Nicole Richie, who gave birth to her son Sparrow in September, is showing off her svelte figure after she lost her post-pregnancy fat dancing to Jay Z numbers.The 28-year-old celebrity boasted via Twitter as she wrote, "I`ve lost 10lbs from dancing!!"

Richie was at the the Jay-Z concert at LA`s Pauley Pavillion Sunday, which was also attended by Justin Timberlake and former girlfriend Jessica Biel, Us magazine online reported. And the socialite seems to have enjoyed the performance to the hilt as she twittered a chant familiar to Jay-Z fans. "H to the izzo. V to the izza!!," she wrote with a subsequent picture showing concert stage and a post saying, "I`m gonna need crutches tomorrow". Sparrow is Richie`s second child with partner rocker Joel Madden, the first being 2-year-old daughter Harlow. Bureau Report