Producer and DJ says Macca's ideas "are just incredible"
The former Beatle is also currently recording a new studio album
The National, Wu-Tang Clan, Alt-J, The xx, The Vaccines, Frank Turner will also play the Tennessee festival in June
Beatles legend says he was right to become vegetarian 30 years ago
Plus, McCartney reveals plans for next solo album
Music legend goes unrecognised in America
Ex-Beatles says local farmers laugh at the livestock on his Scottish farm
Sir Paul speaks about his conversion to a meat-free lifestyle
Discovery captures Beatle performing 1964 Peter And Gordon hit 'A World Without Love'
Elvis Costello also set to appear in advert for vegetarian TV advert