Looking for a way to dress up your 'do? Grab a black headband! A thin band is a quick way to make any style more polished. Just check-out Evan Rachel Wood, Olivia Wilde, Charlize Theron, and Jessica Capshaw, who have all rocked the look on recent red carpets. If you have leftover ribbons from the gifting frenzy, take a tip from Capshaw (right), who re-purposed an old belt into a chic hair accessory. "I saw a magazine spread featuring models wearing these gorgeous black bows, and wanted to try the look out on myself," the actress told us. "I had an old belt made from bow material, and it was fun to see how I could reinvent it!" Looking for more hair inspiration? Click through our gallery to see the hottest DIY hair accessories right now.