He's a legendary musician - having soaring to fame in the iconic band, The Beatles, in the 60s.
And despite Sir Paul McCartney's mega-star status, which saw him mobbed by thousands of screaming fans in his heyday, he proved to be just like everyone else as he enjoyed a casualtrain ride.
The 75-year-old legend, who has sold over 500million albums, was spotted cutting a solo figure as he boarded a train at Kings Cross to Hastings and made himself comfortable in a seat in first class.
In other news, I'm on a train with Paul McCartney. Who is smaller&looks less old in real life. Who says the countryside isn't where it's at?
Paul looked relaxed as he kept himself engaged in some reading material during the train journey and proved not to have entourage or his bodyguard in sight.
According to on-lookers, as well as reading the paper, the Ticket To Ride hitmaker passed his time by also "looking at his old school Nokia."
He also proved to very pleasant when approached by admirers, with one stating: "He was on his own without any bodyguards or staff.
"Only a few people stopped to say hello and that it was nice to see him," the city-worker revealed, before continuing: "He didn't want photos but he was very polite and happy to chat, taking about a new album he has coming out.
"It was unusual seeing such a massive music star just sat on his own."
