Music | Kokayi-Summery (ft. Substantial & Tamara Wellons) – What Iz Hip Hop May 1, 2011 by Kobi As Kokayi preps a remix EP for Robots & Dinosaurs, he’s releasing for the first time a song that had previously online seen release on vinyl, “Summery (ft. Substantial & Tamara Wellons).” Download: Kokayi-Summery (ft. Substantial & Tamara Wellons