Who among the following is a well-known blues musician?

B.B. King is known as one of the most influential figures in the history of blues music. His unique guitar playing style, characterized by expressive bends and vibrato, alongside his rich, soulful voice, helped define the genre and inspire countless musicians across various styles. He is famously associated with his guitar, "Lucille," and his powerful performances, which brought blues music to a wider audience.

Antonio Carlos Jobim is primarily recognized for his contributions to bossa nova, a Brazilian music genre that blends samba and jazz. Dizzy Gillespie is celebrated for his role in the development of bebop jazz, bringing intricate melodies and improvisation techniques to prominence. Nara Leão was a prominent figure in the Brazilian music movement known as "MPB" (Música Popular Brasileira), which combines various musical influences. While all of these artists have made significant contributions to music, B.B. King stands out as a key figure specifically in the blues genre.