29 May,2012 08:42 AM IST | | IANS
"You all have no idea how hard I worked," the 30-year-old told her fans during a concert at Revel Beach Ovation Hall in Atlantic City.u00a0"I had to lose 60 pounds. They had me on that treadmill. I ate lettuce," she said.
She displayed her trim and toned physique in a series of revealing stage costumes during her concert. However, now that she is in good form, she finds it hard to curb her cravings.u00a0"Now tonight I'm gonna get chocolate wasted," exclaimed the singer, married to rapper Jay-Z.u00a0