John Lee Hooker, fulfilling a dream for Wilson of recording with one of his musical idols. It would be his last recording. The resulting double album Hooker 'N' Heat was the first in Hooker's career to make the charts. On the album, Hooker is heard wondering how Wilson was capable of following his guitar playing so well. Hooker was known to be a difficult performer to accompany, partly because of his disregard of song form, yet Wilson seemed to have no trouble at all following him on this album. Hooker states that "you [Wilson] musta been listenin' to my records all your life" and also stated that Wilson was the "greatest harmonica player ever." Released posthumously, the album cover features a framed photo of Wilson on the wall behind the rest of Canned Heat. On a night off in Britain on June 30, 1970, Wilson went to see his old friend Son House, who was performing at the 100 Club in London. He sat in for “Between Midnight and Day” and “I Want to Go Home on the Morning Train." The show was recorded and originally released as John The Revelator on Liberty in 1970. The session was a concept album with House narrating through his last European performance in a biblical format. It was re-issued in 1995 with extensive liner notes by David Evans as Delta Blues and Spirituals on Capitol Records and was posthumously dedicated to Wilson. The last live footage of Wilson was taken at Canned Heat's performance at the Kralingen Music Festival, Rotterdam, Netherlands on June 26, 1970. Wilson appeared with Canned Heat performing "One Kind Favor" during a party scene in the drama Naked Zoo released in 1971. Personal life Wilson suffered from anxiety and depression, rooted from his personal issues and from his despair over the environment, and, according to some, attempted suicide on several occasions. Some of these sources though admit that he never actually said he tried to commit suicide. These were assumptions they made. As a child Wilson experienced sleep paralysis, but later suffered from insomnia as an adult. To resolve his insomnia, Wilson started using the barbiturates Secobarbital, or "reds" as they were known on the street. He had a nervous habit of pulling and twisting his hair. In the Summer of 1969, Wilson was hospitalized for depression. During this time, he wrote the song "Poor Moon," expressing his concern