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

The Beatles star has five children, including four from his marriage to his first wife Linda before she died in 1998 from breast cancer

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

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