Calvin Harris has been working as a DJ and producer for nearly two decades, and the Scottish superstar has been a unique player in the field by singing on many of his own tracks since his 2007 debut.

In Harris' arbitration demand, obtained and reviewed by PEOPLE, the musician alleges Thomas St. John “systematically” took advantage of him through investments in a Hollywood real estate project St.

Calvin Harris, the Scottish DJ and producer whose real name is Adam Wiles, has accused his former financial advisor, Thomas St. John, of orchestrating the misappropriation of $22.5 million intended ...