 ASAP Rocky recorded <unk> at <unk> Music Studio in Dumbo , a neighborhood in Brooklyn , New York . It was engineered by the studio 's primary technicians Daniel Lynas and Frans <unk> . Several producers on the mixtape were associated with ASAP Mob , a collective that was formed by ASAP Rocky in 2007 and featured rappers , record producers , and music video directors . ASAP Ty Beats , SpaceGhostPurrp , and Clams Casino , who had produced several of ASAP Rocky 's previous songs , were his principal collaborators in developing the songs ' woozy soundscapes . Casino previously produced for Lil B and Main Attrakionz , who appears on the mixtape . ASAP Rocky met him after he remixed Casino 's song " Numb " , which was later recorded as " Demons " for the mixtape , and they both tried to contact one another as respective fans . Their first recording for the mixtape was " Wassup " . In August , he rented a pied @-@ à @-@ terre in Midtown Manhattan and housed members of ASAP Mob during Hurricane Irene 's landfall in New York City . 
