Final answer:
The Who became famous for destroying their instruments during live performances, which set them apart as a dynamic and rebellious rock group, reflecting the revolutionary spirit of rock music.
Step-by-step explanation:
The Who gained early fame by destroying their instruments at their live performances. This act became a signature of their shows and contributed to their reputation as a dynamic and rebellious rock band. The spectacle of seeing guitars being smashed and drum kits demolished captured the imagination of their fans and stood in stark contrast to the more polished performances of earlier rock and roll stars. The Who's raucous live shows were part of a broader cultural shift in which rock music became increasingly associated with counter-cultural youth movements, similar to the way rock and roll in the 1950s had captured the hearts of teenagers with iconic figures like Little Richard and Chuck Berry leading the charge.