There are at least five artists with this name:
These are photos from concerts where LAKE played, so they may be of other bands that played the concert as well.
Barclay James Harvest / Lake / City Boy Dec 11, 1977 Upper Darby, Pennsylvania, United States Uploaded by Zimtrim
Nektar / Lake Dec 10, 1977 New York, New York, United States Uploaded by Zimtrim
Nektar / City Boy / LAKE Nov 19, 1977 Chicago, Illinois, United States Uploaded by Cb 57
Robin Trower / LAKE / Prism Nov 10, 1977 St. Louis, Missouri, United States Uploaded by Alma Gayle Jr.
Santana / Chicago / Rory Gallagher / Thin Lizzy / LAKE / Udo Lindenberg Sep 3, 1977 Nuremberg, Bavaria, Germany Uploaded by Zimtrim