They say the third time is a charm! Sir Paul McCartney is getting married for the third time to his girlfriend of four years, Nancy Shevell. According to People.com, the couple have recently become engaged. The pair met in the summer of 2007 after McCartney's highly publicized and bitter divorce from then-wife Heather Mills.

Paul, at age 68 is 17 years older than the 51-year-old Shevell. Not much is known about the New York businesswoman she is a board member of the New York Metropolitan Transportation Authority as well as vice president of a family-owned transportation conglomerate.

A The source says that Shevell has also won over McCartney's five children.