Black maintained a full schedule of concert, radio, and television appearances in 1964-65. Like every other Epstein client, she was also busy in America as well, appearing on the Ed Sullivan Show and such non-rock 'n roll venues as The Tonight Show. She was also a featured performer on a late 1965 British television special, The Beatles: The Music of Lennon and McCartney. By that time, she was, along with the Beatles, one of only two acts still personally managed by Brian Epstein , who regarded her as one of his two most precious musical discoveries--and, indeed, after the Beatles she was the most successful artist to come out of Liverpool.
(Bruce Eder, All Music Guide)