One of the most high profile collaborations that was dropped at Ultra was the dream duo of Martin Garrix and Avicii’s single with the vocals of hit singer John Legend. The release lent serious momentum to both producers at Winter Music Conference Week. Garrix is riding the wave of his single “Don’t Look Down” with Usher, who came out to sing the track live at Ultra. Garrix’s string of mainstream collaborations continued, when he debuted his and Tiesto’s “The Only Way Is Up” the day before Ultra at a launch party in Miami. He even went on to debut his long awaited single with Ed Sheeran, “Rewind, Repeat It.” These most recent releases seem to indicate a more pop-centric and progressive house direction for the 18 year old superstar.