The Roots
The Roots are an American Grammy Award-winning hip hop/neo soul band, formed in 1987 by Tariq "Black Thought" Trotter and Ahmir "Questlove" Thompson, in Philadelphia, Pennsylvania, United States. The Roots are known for their jazzy, eclectic approach to hip hop which includes live instruments.Malik B., Leonard "Hub", and Josh Abrams were added to the band, originally called the Square Roots.
source: Wikipedia