“Girls just wanna have fun,” right? Agreed. And with free food, great music, and a chance to wear that ripped, off-the-shoulder sweatshirt and neon spandex leggings you’ve been hiding at the bottom of your closet, how could the weekly Ladies ’80s Night at Red Sky (16-18 North Street, Boston, 617.742.3333) not be a good time? Stop in between 5 and 9 p.m. for a complimentary three-course dinner from a regularly changing menu and reminisce as you rock to leading ladies including Cyndi, Janet, and Madonna. Everything’s included with a $10 minimum drink purchase.