Riley B. King, known by his stage name B.B. King, was an American blues singer, songwriter, and guitarist.
Rolling Stone magazine ranked him at No. 6 on its 2011 list of the 100 greatest guitarists of all time (previously ranked No. 3 in the 2003 edition of the same list), and he was ranked No. 17 in Gibson's "Top 50 Guitarists of All Time". According to Edward M. Komara, King "introduced a sophisticated style of soloing based on fluid string bending and shimmering vibrato that would influence virtually every electric blues guitarist that followed." King was inducted into the Rock and Roll Hall of Fame in 1987. King was also inducted into 2014 class of the R&B Music Hall of Fame. He is considered one of the most influential blues musicians of all time, earning the nickname "The King of Blues", and one of the "Three Kings of the Blues Guitar" (along with Albert King and Freddie King). King was also known for performing tirelessly throughout his musical career, appearing at more than 200 concerts per year on average into his 70s. In 1956, he reportedly appeared at 342 shows.
In 1990, King was awarded the National Medal of Arts by President George H.W. Bush. In 2006, he received the Presidential Medal of Freedom from President George W. Bush.
King's guitar style was distinctive, displaying influences from the likes of Blind Lemon Jefferson and T-Bone Walker. He was known for his complex string bends and his left hand vibrato, which have been influential in their own right for many guitarists. King's sound combined blues, jazz, swing, and pop music. In King's words, "When I sing, I play in my mind; the minute I stop singing orally, I start to sing by playing Lucille."

Source: Wikipedia