Question: What artist was pictured on the John Lennon album that took a year to record?
Sentence (from "Jürgen Vollmer"): Jürgen Vollmer (born 11 July 1939), with Astrid Kirchherr and Klaus Voormann (the "Exis"), befriended the Beatles during the band's time in Hamburg in the early 1960s.
Relevant evidence: Yes