Nicola James Capaldi was an English singer-songwriter and drummer. His musical career spanned more than four decades. He co-founded the progressive rock band Traffic in 1967 with Steve Winwood with whom he co-wrote the majority of the band's material. He was inducted into the Rock and Roll Hall of Fame as a part of Traffic's original lineup.

Traffic were an English rock band formed in Birmingham in April 1967 by Steve Winwood, Jim Capaldi, Chris Wood and Dave Mason. They began as a psychedelic rock group and diversified their sound through the use of instruments such as keyboards, sitar, and various reed instruments, and by incorporating jazz and improvisational techniques in their music.