The NBA playoffs are under way, and you don't have to be a basketball fanatic to appreciate all the amazing celebrity sideline style. And while a sporting event may not be the first place we would rock five-inch heels, it certainly works for the likes of Beyoncé and Victoria Beckham. Meanwhile, Olivia Wilde opted to show her New York Knicks pride by wearing the team's colors: blue and orange. From coast to coast, fashionable stars have stepped out in cool ensembles to cheer on the LA Lakers and Brooklyn Nets, too — and we're highlighting some of our favorite courtside looks. Click through to see them all now!