He is best known for sound engineering and doing vocal production[1] for multiple major music artists, including Justin Bieber,[2] Katy Perry, Mary J. Blige,[citation needed] Ciara and Mariah Carey.
[citation needed] While at this company, he connected with multiple producers and songwriters from Atlanta, including Tricky Stewart, The Dream & Poo Bear, whom he would later collaborate with.
[5] In 2006, O'Ryan reunited with Tricky Stewart and over the next few years, he engineered records for Usher, Mariah Carey, Celine Dion, Rihanna, and Mary J. Blige, for which he won a Grammy Award.
[9] In 2017, O'Ryan signed the Australian music producer Black Summer and released his debut single "Young Like Me (feat.
The music video, directed by Tim Maxx, was filmed in Los Angeles and released on national television in Australia on Nine Network.