The cutest Halloween costumes EVER! Advocate Children's Hospital's NICU held their annual costume contest, and the winning babies are unbelievably adorable. See the winning firefighter and Harry Potter outfits, and read heartwarming stories from the families. Get ready for a heartwarming dose of Halloween cuteness that will leave you smiling! #NICU #Halloween #Costumes #CuteBabies #Chicago #Hospital #HeartwarmingStory