Which celebrity is NOT known for influencing men's hairstyles in the 1950s?

In the context of influential figures in men's hairstyles during the 1950s, Jimi Hendrix stands out as the correct choice for a celebrity who is not associated with that specific era. Hendrix rose to prominence in the 1960s, primarily known for his groundbreaking contributions to rock music and his distinctive style, which included long hair and a bold, psychedelic aesthetic.

In contrast, James Dean, Little Richard, and Elvis Presley were all prominent figures in the 1950s, and each played a significant role in shaping men's hairstyles of that time. James Dean's iconic look influenced the rebellious youth culture, Little Richard's flamboyant style helped popularize the pompadour and exuberant hairstyles, while Elvis Presley became synonymous with the classic 'Elvis hairstyle,' which defined the rock and roll image. Thus, Jimi Hendrix does not fit into the 1950s category of hairstyle influencers, as his influence primarily emerged later in the cultural landscape of the 1960s.