Washington, Aug 21 : Sir Paul McCartney has rubbished reports that he's to wed American heiress Nancy Shevell.

The pair fuelled rumors that they were to exchange marriage vows after McCartney was spotted shopping at top London jewelers S.J. Phillips.

The couple was subsequently reported to have sought the blessing of their families after their return from a road trip across the U.S. earlier this month (Aug08), reports Contactmusic.

But a representative for McCartney has denied the star is to wed, saying, "It is nonsense to say they are getting married."

McCartney ended his marriage to former glamour model Heather Mills earlier this year (08), while Shevell is still battling to finalize her divorce from U.S. lawyer Bruce.

ANI