Merrill Garbus and company got a little help from The Roots' ?uestlove and Black Thought Monday night while performing the tUnE-yArDs track "Gangsta" on "Late Night with Jimmy Fallon". And it was really cool. If you know Garbus' tUnE-yArDs project, particularly her newest LP whokill (4AD), you know what a talented musician and skilled performer -- not to mention excellent multi-tasker -- she is. Having The Roots Crew on your side definitely doesn't hurt. Check out the clip here.