Festivals

Ultra Music Festival Crosses Over: 10 Highlights From a Star-Studded Weekend

Martin Garrix and Usher perform at Ultra Music Festival
Aaron Davidson/Getty Images

Martin Garrix and Usher perform at Ultra Music Festival at Bayfront Park Amphitheater on March 28, 2015 in Miami, Florida.  

The Miami EDM festival saw surprise performances from pop stars such as Justin Bieber & Ariana Grande.