1987 by Tariq "Black Thought" Trotter and Ahmir "Questlove" Thompson in Philadelphia, Pennsylvania. They are known for a jazzy, eclectic approach to hip hop which includes live instrumentals. Malik B., Leonard "Hub" Hubbard, and Josh Abrams were added to the band, originally called The Square Roots. Since their first independent album release, the band has released 10 studio albums, two EPs, two collaboration albums and have collaborated with a wide range of artists from different genres. The Roots have served as the house band on Late Night with Jimmy Fallon since its premiere in 2009. The Roots' work has been repeatedly met with critical acclaim. About.com ranked them #7 on its list of the 25 Best Rap Groups of All-Time, describing them as "Hip-hop's first legitimate band."