Holman is best known for his work with multi-platinum artist  Olivia Newton-John, No Doubt Tragic Kingdom, Bush albums Sixteen Stone and Razorblade Suitcase, Adema, and Sick Puppies.
Holman's work has been recognized through his collaborations with prominent artists like Olivia Newton-John, No Doubt, Bush, Adema, and Sick Puppies, who have achieved multi-platinum success.