Sir Paul McCartney says when he performs in concert it helps him to remember the other Beatles members and his late wife Linda.
Despite the fact it's been almost 40 years since the band split, the 67-year-old music legend loves playing the Fab Four's songs live because it takes him on a trip down memory lane.
Paul - who played in The Beatles with Ringo Starr and the late John Lennon and George Harrison - said: "I still think I am in The Beatles - it is something you don't want to lose. If I am doing songs from The Beatles, I remember the session when we recorded it. If I am doing 'Something' obviously I am thinking of George, and the memories of playing the ukulele. In a way you are revisiting them."
Paul also thinks of late wife Linda, who lost her battle with breast cancer in 1998, when he plays songs by Wings - the band he and Linda formed after the Beatles split in 1970.
Paul, who launched his 'Good Evening New York City' DVD in London yesterday (26.11.09) - said: "Similarly with John and Linda, you kind of are in contact with them again. It's sad, it's emotional.
"There's a song I do called 'Here Today' which is specifically written for John, and that sometimes catches me out. I realise I am telling this man that I love him and it's like, 'Oh my God, I am publicly declaring this in front of all these people I don't know.' "