In what year was the album Clockwork Indigo released which featured both The Underachievers and American Hip Hop group Flatbush  Zombies?
Clockwork Indigo EP: Clockwork Indigo is the self-titled EP by American hip hop group Clockwork Indigo (consisting of Hip hop groups Flatbush Zombies and The Underachievers). Clockwork Indigo EP:  It was released on October 17, 2014 under Electric KooLade Records. Flatbush Zombies: Flatbush Zombies (stylized as Flatbush ZOMBiES) is an American hip hop group from the Flatbush section of Brooklyn, New York City, formed in 2010.
2014