Ultra Music Festival 2017: 11 Must-See Resistance Stage Acts Since Ultra introduced its Resistance stage in 2015, the haven for house & techno fans has exploded in popularity. Here are 11 Resistance acts not to miss. Related Posts: Danny Tenaglia announces UNICEF benefit stream for his 60th birthday featuring Carl Cox, David Guetta, and more Good Morning Mix: Relive Seth Troxler’s Cercle set at the Château d’Apigné