ABC Family stars got into the holiday spirit and headed to Rockefeller Center Sunday. They gathered to celebrate the 25 Days of Christmas, which kicked off on Dec. 1. The cable channel will be airing holiday favorites like “Dr. Seuss’ How the Grinch Stole Christmas,” as well as the Harry Potter movies. Celebs in attendance included Molly Ringwald, Shallene Wooley, Matt Dallas, Christina Milian and Ashley Benson.