Gabrial "Gabe" McNair (born September 8, 1973) is a multi-instrumentalist and composer, most famous for his work in No Doubt since 1993 as a trombonist, keyboardist, and backing vocalist. He recorded and toured with Green Day during the Nimrod and Warning tours, playing trombone and tenor saxophone. In 2003, he joined the California-based rock band Oslo where he plays the guitar.