Paul McCartney will wed American fiance Nancy Shevell in London tomorrow, say the British tabs Daily Mirror and the Sun. It doesn't seem far-fetched: A tent and party decorations are going up at McCartney's house, notes AP, and the couple last month filed their intent to marry in the near future at Marylebone Town Hall. That's where McCartney married Linda in 1969, and tomorrow is John Lennon's birthday. (He would have been 71.) McCartney is 69 and businesswoman Shevell is 51. (More Paul McCartney stories.)