Sir Paul McCartney's concerts are always emotionally charged because playing live allows him to re-connect with his lost loved ones.
The veteran performer is always reminded of his late bandmates John Lennon and George Harrison whenever he plays Beatles tracks.
He also uses his music to remember his wife, Linda, who passed away in 1998 following a battle with breast cancer.
MCCartney admits he feels comforted by sharing his sadness with the audience.
He says, "If I'm doing songs by the Beatles I obviously remember the sessions we recorded, there's always an element of that. But if I'm doing something like Something, the song, obviously I'm thinking of George... It's great actually, I really like it. In a way I'm revisiting them.
"I'm sort of thinking about George, similarly with John and Linda. In a way you're kind of in contact with them again, you know.
"And 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'm telling this man that I love him. I'm publicly declaring this in front of all these people I don't know.
"It's a good thing to do. I couldn't have done it when I was 18 because I would not have allowed myself to cry or go anywhere near that. Now it's OK. I'm used to it."