A source has reveled that the former Beatle,Sir Paul McCartney underwent coronary angioplasty - a procedure that opens up arteries and allows a greater flow of blood. This secret heart surgery was done last autumn.
"Paul had been complaining about not feeling well and saw a Harley Street specialist at The London Clinic," The Sun quoted a source, as saying.
"Tests were carried out and the decision was taken to operate. Paul had the angioplasty in a private hospital. It was all very routine but any work on your heart is a big deal," the source added.
The legendary singer, who is currently embroiled in a bitter divorce battle with estranged wife Heather Mills, made a good recovery as he joined Aussie pop princess Kyle Minogue on-stage on New Year's day to perform his hit single 'Dance Tonight' during Jools Holland's BBC2 New Year special.
"Luckily Paul is in very good shape. He does regular exercise and is fit," a friend said.
"He eats well and does not carry any excess weight. He has always been in exceptional health, which is remarkable when you think of the rock 'n' roll lifestyle he once had," the friend added.
A spokesman for Macca confirmed that the surgery had been performed in the autumn.
"It was a routine medical operation," the spokesman said.