The Beatles are arguably the most successful act in music history.They were very prolific musicians before, during, and after The Beatles, and they were never idle, always doing something in the music and film industry through-out the decades.As well as their own individual projects, they also helped out on other people's records and pro-jects.On one tune, you may catch George playing slide gui-tar, Ringo may be on drums, and John or Paul will sing backing vocals.Throughout the years, you may have been listening to something which has some sort of Beatle mag-ic, without you realising it!This book is a database of these many fascinating collaborations over the years, some which might even surprise you along the way!