Tie-dye is one of the hottest trends for Fall, and todays biggest 'it girls' are reaching for Frankies Bikinis for a unique, comfortable take on that trend. Madison Beer was spotted grabbing lunch in Beverly Hills wearing the brand's Burl Sweatshirt and Aiden Tie Dye Sweat Pant in their exclusive brown tie-dye print, days after supermodel Gigi Hadid wore the same set out and about in New York City. Check out Madison's full outfit here --