Talent manager themselves, for example the various talent agents who spearheaded the British Invasion of The Beatles and Herman's Hermits in the 1960s such as Brian Epstein, Allan Williams, Harvey Lisberg. Infamous examples in the music press include Allen Klein, manager of both The Beatles and The Rolling Stones. The industry of talent management has been unionized or organized in several forms throughout history. In the United States, a notable early example was the Association of Talent Agents, which was formed in Los Angeles, California in 1937. The ATA comes out of the Wagner Act upheld by the Supreme Court which established
Aftermath (The Rolling Stones album) idea inspired by the Beatles' example on "Rubber Soul". According to American musicologist David Malvinni, "Aftermath" is the culmination of the Rolling Stones' stylistic development dating back to 1964, a "hybrid musical style forged from the band's myriad sources – early rock and roll, the blues, R & B, soul, pop balladry, and folk rock". Along with the band's next album, "Between the Buttons" (1967), it is cited by Malvinni as belonging to "their pop-rock repertoire", featuring a "chordal" range more "varied" and inclusive of minor chords than their blues-based recordings. Margotin and Guesdon went further in saying the band