Tiësto was a mystery guest at Nikki Beach Miami with Oliver Heldens and Martin Grarrix. https://scontent.cdninstagram.com/hphotos-xfa1/t50.2886-16/11098619_1386451375009903_2139821667_n.mp4 https://scontent.cdninstagram.com/hphotos-xfa1/t50.2886-16/11083499_1418744095095819_974904852_n.mp4 https://scontent.cdninstagram.com/hphotos-xaf1/t50.2886-16/11078629_1415627175408153_1284125360_n.mp4