Macca also describes Wings as 'terrible'
The Beatle invited the girl to join him on bass guitar during his sold-out Buenos Aires show
Ex-Beatle honours Prince for 'writing so many beautiful songs, so much music'
The women were part of the Little Rock Nine group
Producers and Timo Maas and James Teej are behind the remix, released with McCartney's full backing
The pair teamed up for 'Helter Skelter' in Seattle on Sunday night (April 17)
Featuring songs from his 1970 debut to 2015’s 'Say Say Say' remix
The Beatles star follows the Stones' Keith Richards' cameo in the third and fourth films
Copyright law in the States will allow McCartney to claim ownership after 56 years pass
The news comes following the passing of 'the fifth Beatle' George Martin