The two surviving members of the band met up at the launch of Sir Paul's daughter Mary's new photography book, From Where I Stand.
The launch was held at the Michael Hoppen Gallery in London and it was also attended by Mary's pregnant sister Stella as well as Starr's wife Barbara Bach and his daughter Lee Starkey.
Mary, who has been a photographer for 15 years, spoke about the book and said: 'I wanted to pick shots that stand alone. I like the photographs of other people that inspired me to be a photographer that make me think: 'Who was that person? Where was this picture taken? What was the feel behind it? What [was] the emotion behind it?''