Beyonce Lost 60 Pounds Since Birth of Blue Ivy Carter

Beyonce told her fans at a concert in Atlantic City on Saturday that she shed 60 pounds since the birth of her daughter Blue Ivy Carter.

But according to the singer, it was tough.

"Y'all have no idea how hard I worked!" Beyonce told fans at her concert in the Revel Resort.

"I had to lose 60 pounds. They had me on that treadmill eating lettuce!" she said.

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“Now tonight I’m gonna get chocolate wasted!” she exclaimed.

Beyonce, 30 performed for the first time on Friday since her daughter was born in early January. She has scheduled 4 shows at the $2.4 billion new resort.

According to the first reviews the singer was very energetic on stage and the 2-hour show was very entertaining.

Among famous people attending were First Lady Michelle Obama and her two daughters and New Jersey Governor Chris Christie.

Throughout the night Beyonce paid tribute to Whitney Houston singing "I Will Always Love You," and gave a shout out to Donna Summer.

She is also performing tonight and Monday.