Its one of johns songs that was on the tape on which was supposedly writen For Paul . There were demos of 4 songs . Free As A Bird , Now And Then , Real Love and Grow Old With Me . These songs were supposed to be recorded by the beatles for the anthology project . Real Love and Free As A Bird were finished by the Threetles and then released . They intended working on Grow Old With Me , but as it was in the 90 ' s they werent able to clear the demo tape well enough , so they stopped working on in immediatly and i dont think there ever was a full beatles version . The did some work on Now and Then however , but George then said its rubbish and didn ' t want to release the song . McCartney has said later , that he wants to finish the song and release it . There ' s Johns demo on youtube , but no beatles version .