Keith Richards (born 18 December 1943) is an English guitarist best known as a founder member of the Rolling Stones. He is mostly famous for his rhythm guitar playing, but he can also play lead guitar quite well. He often likes to use a guitar with only 5 strings — the lowest-tuned string is removed. On a small number of Rolling Stones recordings, he plays bass guitar, as well as other instruments. He sings background vocals on most Rolling Stones songs. Occasionally, he also sings lead vocals, on songs like "Happy", "Little T & A", and "The Worst".