Mason is the stage name of Dutch music DJ & producer Iason Chronis (born 17 January 1980). He had a number one on the UK Dance Chart in 2007 with his track "Exceeder". Exceeder had originally been an instrumental and had received a vinyl-only release in the UK in 2006. The new version of the track, "Perfect (Exceeder)", was a mashup with American rapper Princess Superstar's song "Perfect" and reached number 3 on the national British chart in January 2007. The track was a big hit in many countries worldwide. He also had chart success in 2011 with his song "Runaway", which was a modern version of "Runaway" by Eruption, and "Boadicea", featuring Róisín Murphy, in 2016 with "Fashion Killa" (feat Stefflon Don), and with many club releases since. Mason is the owner of the record label Animal Language.
Mason has released music on numerous electronic music labels, such as Island Records, Defected, Skint, Toolroom, Great Stuff Recordings and Fool's Gold Records, and remixed artists such as Moby, Steve Aoki, Hadouken!, Don Diablo, Mat Zo, 2Unlimited, Mylo, Metronomy , Tommy Trash, Martin Solveig, Robyn and Gabriella Cilmi.
Mason plays live shows as well as DJ sets and has performed at festivals such as Sensation White, Dance Valley, Tomorrowland, Nature One, Creamfields, Global Gathering and clubs such as Fabric, Ministry of Sound, Green Valley, Space Ibiza, Zouk, Octagon, Air and many others in more than 50 countries around the world. Mason is the organiser behind several parties throughout the Netherlands, including the Animal Language Kafe Rave and Avondwinkel at Club Nyx in Amsterdam. He is also on the members board of Buma/Stemra.