Beyoncé Knowles was back out in NYC this evening to catch the second night of Jay-Z's Carnegie Hall charity concert series. She shared pictures on her website of her sparkly Monique Lhuillier dress, Chanel purse, and Lorraine Schwartz jewels, which she accented with blue nail polish. Beyoncé's nail color and huge ring in the same hue seem to be in honor of her baby daughter, Blue Ivy. She gave birth to Blue one month ago and stepped out for the first time just yesterday. Beyoncé wore red to attend Jay-Z's first show, and the couple celebrated the big event with an afterparty at Jay-Z's 40/40 Club.