Mackenzie Johnson, better known by his stage name Makj, is an American DJ and electro house music producer. He has released a number of singles as a solo artist since 2012, as well as a large number of collaborative singles with artists such as Hardwell, Lil Jon, Deorro and M35. Since 2013 Makj has performed at large festivals such as Electric Zoo, Voodoo Experience, Coachella, and a main stage slot at TomorrowWorld. In March 2014, Billboard named him one of the Top 10 Artists to Watch at Ultra Music Festival. Also in 2014 he was named No. 63 in the Top 100 DJs list put out by the DJ Magazine Awards. Makj is the host of the radio show Revolution Radio on Clear Channel’s Evolution channel.

Robbert van de Corput, known professionally as Hardwell, is a Dutch DJ and music producer from Breda. He was voted the world's number one DJ by DJ Mag in 2013 and again in 2014. In 2022, he was ranked at number 43 in the top 100 DJs poll by DJ Mag. He is best known for his sets at music festivals, including Ultra Music Festival, Sunburn and Tomorrowland.