Mark Goldenberg is a guitarist who has played on records for a myriad of artists including Jackson Browne, Bonnie Raitt, Linda Ronstadt, Eels, Natalie Imbruglia, Chris Isaak, Waylon Jennings, Willie Nelson, Peter Frampton and yes, William Shatner.
He has been lead guitarist for Jackson Browne since 1994.
He is also a songwriter whose works have been recorded by Linda Rondstat, Chicago, Pointer Sisters, Natalie Imbruglia, Eels, Chris Botti, and yes, Olivia Newton John, among others.