Richard Mowatt, commonly known by his stage name Solarstone (formerly spelled Solar Stone), is an English trance DJ and producer from Birmingham. The music project Solarstone was founded as a trio, and also used the pseudonyms Young Parisians, Liquid State and Z2. Over the years, Solarstone has developed a reputation for keeping to the original and classic trance sound. He is considered to be a veteran by fans in the trance music scene. Since 2012, Solarstone has been pushing forward a Pure Trance movement through tours where he aims to keep the trance genre true to its roots.
Together with the Trance DJ Robbie Nelson, in 2004 Rich Mowatt launched the Solaris International Radio Show, which was distributed through various online channels. In the early years, the programme appeared irregularly and was a mix of interviews and new music, but from December 2006 (Episode 33) it appeared as a weekly, two-hour podcast. It was hosted alternately by Nelson and Mowatt and included new tracks and remixes, a half-hour guest DJ mix, and at least one classic trance track from the late 1990s or early 2000s. The music selection was increasingly influenced by members of the social network Solar, which was founded by Mowatt. The 250th episode was broadcast on 14 March 2011. Solaris International had its 466th and last episode on 25 August 2015.
On 2 September 2015, Solarstone launched the first episode of his new radio show Pure Trance Radio. Episode 100 was broadcast on 9th August 2017, live from the A State of Trance Studio in Amsterdam.