Johnston had also scored several film projects for WWE's film division WWE Studios, these included "The Chaperone", "That's What I Am", and "The Reunion". He also provided music for other WWE-affiliated products including the World Bodybuilding Federation and the XFL. He is known for writing, composing and producing all his compositions alone, in addition to playing all instruments. He occasionally recruited outside vocalists or additional musicians to contribute when the piece required, and often preferred to bring in unsigned bands and new artists to provide vocals. In 2008, Johnston publicly expressed his frustration to "Billboard" at the inability of WWE to secure better promotional deals with artists due to a lack of understanding of the WWE product. He said, "One of my frustrations is getting the word out about just how much music is used in our product. The labels will stumble over themselves to get on MTV, but no one's watching MTV". Conversely, WWE and Johnston have been responsible for helping to fuel a surge in sales for associated acts such as Fuel, Shinedown and Motörhead through their use in WWE productions.