Beyonce On Pregnancy Rumors: 'All I Can Do Is Sit Back And Laugh...'

What pregnancy? Beyonce Knowles is firing back after reports that the singer is pregnant with her second child. On Saturday, the 31-year-old superstar posted a note on her Instagram account. "I can't stop the rumors from starting, and I can't really change peoples minds who believe them," she wrote. "All I can do is sit...