Keith Barry, known professionally as Tree, is an American musician and multi-instrumentalist. He is best known as a past touring member of the Red Hot Chili Peppers, and for having appeared on several albums released by the band. He is also a member of the funk band Mandrill. He has collaborated with groups including Gov't Mule and Thelonious Monster, as well as with jazz artists Harry Edison, Les McCann, and Leroy Vinnegar. Tree is the co-founder and dean of the Silverlake Conservatory of Music.