George said to Bob [Dylan], ‘Do you think you could sing … “Blowin’ in the Wind”—the audience would just love it’ …
and Bob looked at him: ‘You interested in “Blowin’ in the Wind”? … Are you gonna sing “I Wanna Hold Your Hand”?’
George Harrison’s concert for Bangladesh, August 1971 Heylin, Clinton. Behind the Shades: The 20th Anniversary Edition (p. 330). Faber & Faber. Kindle Edition.