''''Mason''' is the stage name of the 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) featured vocals from Princess Superstar and reached number 3 on the national British chart in January 2007. The number was a big hit in The Netherlands as well. Mason has been very popular with Ministry of Sound featuring on many of their annual compilations.

Mason has released music on numerous electronic music labels, such as Great Stuff Recordings, and Fool's Gold Records, and remixed artists such as Moby, Robyn and Gabriella Cilmi. In 2008 Mason launched his own label 'Animal Language'. In 2011 he released his debut album 'They Are Among Us', which featured collaborations with Roisin Murphy, DMC, Sam Sparro, Kurtis Blow and Aqualung. In 2014 the second Mason album 'ZOA' was released, featuring Jocelyn Brown, Rouge Mary (Hercules & Love Affair) and many other feature artists. He also had chart success in the Netherlands and Belgium with his song 'Runaway', which was a modern version of Runaway by Eruption, and with Boadicea, featuring Roisin Murphy. In 2015 'Papapapa' on Loulou Records reached a number 1 position on Beatport.