Doucette was Canadian guitarist and singer-songwriter Jerry Doucette (born Jerry Victor Doucette in Montreal, Quebec, on 9 September 1951; died April 18, 2022). As Doucette, he is noted for the 1977 hit single "Mama Let Him Play", which made the US Billboard Top 100. The 2001 compilation "Most Memorable Works" is credited to Jerry Doucette but should be Doucette.
These are videos from concerts where Doucette played, so they may be of other bands that played the concert as well.
Doucette - Mama Let Him Play
Eddie Money / Meatloaf / Doucette Feb 14, 1978 St. Louis, Missouri, United States Embedded by Mark And Mary
Meatloaf - Bat Out of Hell