McCartney, however, revealed he contemplated quitting in 2007, when he was 65.

Asked if he thought about retirement, he told Q magazine, "Inevitably you do, I mean, I had those thoughts at 65. Which is a while ago. 'Cos 65 is the retirement age. In my world, in the working class." 

When reminded that it has been pushed back to 66 now, the veteran singer added, "Oh they moved it? Hey, they can move it as far as they like, I don't mind. 'Cos my work is play. Seems to be working OK." 

The "Hey Jude" hit maker is set to release his new studio album 'Egypt Station' in September, which will mark his first album in five years.