In the eighties, Guy signed as a staff songwriter and had his songs recorded by numerous artists, including Carly Simon, Kenny Rogers, Smokey Robinson and Kenny Loggins. He co-wrote the hit "Conviction of the Heart" with Kenny Loggins, along with "Leap Of Faith" and "Now or Never" for Kenny's LEAP OF FAITH album.

 

Guy also performed with artists such as Kenny Loggins, Amy Grant, Michael McDonald, The Rembrandts, Michael Bolton, and Jackson Browne.