an English group to play there. Sheridan and others (including Colin "Melander" Crawley) joined an ad hoc group promptly dubbed "The Jets" and were put on the ship headed for Hamburg. As fate would have it, legal woes (i.e. lack of proper papers) caused "The Jets" to not last long, but Sheridan (and now-friend Crawley) were soon back onstage in Hamburg. While performing in Hamburg between 1960 and 1963, Sheridan employed various backup bands, most of which were really "pickup bands", or simply an amalgam of various musicians, rather than a group proper (though almost always including now bassist Colin "Melander" Crawley and usually top-pianist Roy Young). However, in 1961, the young Beatles (with their line-up at the time of John Lennon, Paul McCartney, George Harrison, Stuart Sutcliffe and Pete Best) who had met and admired Sheridan during their first visit to Hamburg in 1960, and who worked with him on their second visit, became even closer. The Beatles sometimes backed Sheridan, who, in turn, often joined the Beatles during their own sets backing them on guitar. They even visited Sheridan's home and had jam sessions in the back garden. When a colleague of German Polydor producer/A & R man Bert Kaempfert saw the pairing on stage, he suggested that Sheridan and the Beatles make some recordings together. Kaempfert viewed Sheridan as the one with "star" potential, and though Kaempfert’s production company signed the Beatles to play on Sheridan's records, the contract stipulated that the four Beatles (Lennon, McCartney, Harrison and Best) were guaranteed to play on a minimum of two songs. Of the seven songs recorded during Sheridan's two-day-long sessions for Polydor in June 1961, at times the band behind Sheridan would be down to only two Beatles (Paul McCartney and Pete Best). Conversely some say that only on their two songs do all four Beatles play (minus Sheridan), while Sheridan plays on all of his tracks. John Lennon's rhythm guitar is heard only on the two Beatles tracks (though his voice is heard in background vocals as well as his handclaps on Sheridan's tracks) (per "Beatles Deeper Undercover" by Kristopher Engelhardt, p. 302) These sessions produced Sheridan's "My Bonnie" and "The Saints", and the Beatles' "Ain't She Sweet" and "Cry for a Shadow" (formerly titled "Beatle Bop"), plus three other songs. Polydor's beliefs in Sheridan's coming stardom were so strong that they buried the two Beatles tracks until