On November 22, 2011, US Congresswoman and presidential candidate Michele Bachmann was a guest on "Late Night". For her entrance, the Roots controversially played a snippet from Fishbone's 1985 song, "Lying Ass Bitch" resulting in apologies from Fallon, Questlove for The Roots, and NBC. The incident nearly resulted in the Roots being dismissed from the show, but the timing of the Thanksgiving holiday and a national security gaffe by Bachmann shortly after helped defuse the situation in the media. As a result of the incident, NBC approves all walk on songs prior to filming each show.