What's the name of the group that  Bacharach worked hands-on with, when rock and pop acts from Britain became popular in the United States
My Little Red Book:  In the wake of the British Invasion, Bacharach, a former bandleader for Marlene Dietrich, began working hands-on with beat groups of the era such as Manfred Mann. British Invasion: The British Invasion was a cultural phenomenon of the mid-1960s, when rock and pop music acts from the United Kingdom, as well as other aspects of British culture, became popular in the United States, and significant to rising "counterculture" on both sides of the Atlantic.
Manfred Mann