Singer had to promote two concerts on BG244: Lee Michaels on the weekend and British band Ten Years After at mid-week. Cactus, formed by the rhythm section of Vanilla Fudge, opened for Ten Years After and was followed by Toe Fat, British blues-rockers. As was his style, Singer's perfect circle collage presented a perfectly balanced scene.
During his Fillmore era, from 1969-1971, Singer created more posters for Graham than any other artist. Singer's posters are notable for his use of collage, incorporating thousands of images clipped from magazines spanning several decades. He developed a format that included a stunning variety of lettering styles, applying them in close relation to the theme or subject of a poster.