The term 'Girl in a Beatles Title' refers to three female characters mentioned in Beatles songs. The first is Lucy, who is the subject of the song 'Lucy in the Sky with Diamonds'. The second is Rita, who is the subject of the song 'Lovely Rita'. The third is Martha, who is the subject of the song 'Martha My Dear'. All three songs were released on the Beatles' 1967 album Sgt. Pepper's Lonely Hearts Club Band.