Kristin Cavallari hit the streets of LA on Tuesday after**on looking absolutely gorgeous. Dressed in a delicate, White lace romper and nude heels, the former reality TV star smiled for photographers and texted as she made her way down the sidewalk. Her outing also happened to be on the same day MTV an**unced a new special centered on The Hills. It's unclear whether or **t Kristin will appear on the show, but it's safe to say that she's come a long way from her days spent sparring with Lauren Conrad. Between flaunting her sweet romance with husband Jay Cutler, raising three adorable children, and writing a book, Kristin has had plenty to keep her busy. Keep reading to see more photos from her outing!