Jimi Hendrix (born Johnny Allen Hendrix) musician, singer-songwriter. He is considered one of the most influential electric guitarists, and one of the most important musicians of the 20th century. He was instrumental in developing the technique of guitar amplifier feedback and favored overdriven amplifiers with high volume. He helped popularize the use of the wah-wah pedal in mainstream rock and pioneered experimentation with stereophonic phasing effects in rock music. R.I.P.