 They also toured the United States later in 1969, on one gig in Detroit sharing the bill with Joe Cocker & The Grease Band, The Kinks, Grand Funk Railroad and The James Gang.The band broke up in May 1970.Roberts formed the folk-rock band Plainsong in early 1972 with former Fairport Convention and Matthews Southern Comfort singer, Iain Matthews, on whose first solo album he had played guitar, and with whom he had earlier toured the United States alongside Richard Thompson in autumn 1971.