George Ivan Morrison (generally known as Van Morrison) (born August 31, 1945) is a Grammy Award-winning Irish singer, songwriter, author, poet and multi-instrumentalist, who has been a professional musician since the late 1950s. He plays a variety of instruments, including the guitar, harmonica, keyboards, drums, and saxophone. Featuring his characteristic growl — a unique mix of folk, blues, Irish, scat, and Celtic influences — Morrison is widely considered one of the most unusual and influential vocalists in the history of rock and roll.