Paul referenced the Beatles' nickname as the Fab Four - as the band was made up of Paul, John, Ringo Starr, and George Harrison - and also referenced a hit Beatles song, With A Li

Paul McCartney's experimental side rivaled his work with The Beatles. And yet, those solo records are still a bit too underrated.

As Paul McCartney celebrates his 83rd birthday with his nearest and dearest, let's take a look inside his lavish London home.

From performance to recording and arranging, McCartney said the group found ways to make themselves a little different from the competition

According to ScreenDaily.com, McCartney will lend his voice to Paul McKenzie, a walrus who also happens to be a left-handed bassist, like the Beatles legend himself, and who plays in a band called The Sweets.