Beyonce on post baby performance
15 February 2013 Last updated at 17:25 GMT
Beyonce has opened up about motherhood in an interview with talk show host Oprah Winfrey.
The singer went back to work three months after her first child, Blue Ivy, was born.
"I did a show three months after I gave birth, which was really crazy. I had clearly never given birth and didn't know that I would gain 60 pounds," she said.