Beyonce is back at it again.  The singer stepped out again for a second night to support her hubby Jay -Z Carnegie Hall concert. Showing off that amazing post-pregnancy body,  Beyonce rocked shimmered in a Monique Lhuillier dress with Gucci heels, a Chanel purse, and blue nails and Lorraine Schwartz jewelry in honor of her daughter Blue Ivy Carter, who just turned one month old.