 He wrote the top 15 hit "Summer Rain" for Johnny Rivers, and the theme song "Long Lonesome Highway" for the TV show "Then Came Bronson".A different 1960s group known as The Mugwumps, based in Los Angeles and produced by Mike Curb for his Sidewalk label, had no connection to the New York group but reached #127 on the "Billboard" Bubbling Under Hot 100 chart in 1966 with a cover version of "Jug Band Music", a song John Sebastian wrote for the Lovin' Spoonful's "Daydream" album.