Nash is a natural redhead, but as of 2013 she had dyed black and blond hair. She originally dyed her hair black for her film role as Carol in Greetings from Tim Buckley, and has maintained this look to promote Girl Talk because it makes her "feel a bit stronger." In April 2014, she dyed her hair pink for her performance at Coachella Festival.[66] She wears punk jewelry, such as safety pin and razor blade earrings.[67]