From The Phobia Tumblr:
11.35am, Friday 8 August 1969: All four Beatles gathered at EMI Studios on the morning of Friday 8 August 1969 for one of the most famous photo shoots of their career. Photographer Iain Macmillan took the famous image that adorned their last-recorded album, Abbey Road.
Update: This one is actually not a real photo from the day of, it was computer generated for an advertisement.
And here’s the final image that we all know and love: