Beyoncé Knowles held her daughter Blue Ivy Carter yesterday as they left their Manhattan home. Little Blue Ivy, who's just two months old, was bundled up in a fuzzy blanket as Beyoncé and her pals piled into an SUV. Beyoncé and Blue went to Prospect Park, in Brooklyn, where they apparently spent a day out on a blanket with grandma Tina Knowles. The Knowles-Carter clan have been hanging out in the Big Apple since Blue's January arrival. Her dad Jay-Z, though, will soon take off for Texas to make an appearance at SXSW. He'll perform at a March 12 American Express-sponsored show that's scheduled to be streamed live on the Internet. Blue Ivy has already had a few fun adventures of her own, including multiple lunch dates with her mom and dad.