This lineup went into the studio to record with John Lee Hooker the tracks that would yield the double album, "Hooker 'n Heat". The band had originally met Hooker at the airport in Portland, Oregon, and discovered they were fans of each other's work. Hooker and Canned Heat became good friends and Hooker had stated that Wilson was "the greatest harmonica player ever". The planned format for the sessions called for Hooker to perform a few songs by himself, followed by some duets with Wilson playing piano or guitar. The rest of the album featured Hooker with some backing by the group (sans Bob Hite, who co-produced the album along with Skip Taylor). The album was finished after Wilson's passing and became the first album in Hooker's career to make the charts, topping out at #73 in February 1971. Hooker 'n Heat would unite again in 1978 and record a live album at the Fox Venice Theatre in Los Angeles, released in 1981 as, "Hooker 'n Heat, Live at the Fox Venice Theatre", under Rhino Records. Also in 1989, Canned Heat (and many others) guested on John Lee Hooker's album "The Healer".