Thanks to Jenn for pointing this out.

Here’s an interesting passage:

PG: Well I had just done a couple of instrumental records. Those actually did great for me. Especially in America and Europe. When I did my first instrumental record, Get Out of My Yard, Joe Satriani took notice and asked me to do the G3 tour with him, and my career kind of took off. I was kind of joking that when I quit singing, my career took off….

http://www.yesweekly.com/article-6456-a-conversation-with-paul-gilbert.html