For the new record, U2 wanted to continue their sonic experimentation from "Achtung Baby" and "Zooropa". To do so, they employed multiple producers to have additional people with whom to share their ideas. Flood was principal producer, having previously worked with the group as engineer for "The Joshua Tree" and "Achtung Baby", and co-producer of "Zooropa". Mark "Spike" Stent and Howie B were principal engineers. Flood described his job on "Pop" as a "creative coordinator", saying, "There were some tracks where I didn't necessarily have a major involvement... but ultimately the buck stopped with me. I had the role of the creative supervisor who judged what worked and didn't work." Howie B had previously provided mixing, treatments, and scratching for "Original Soundtracks 1". On "Pop", he was initially given the role of "DJ and Vibes" before assuming responsibilities as co-producer, engineer, and mixer. One of his main tasks was to introduce the band to sounds and influences within electronica. The band and Howie B regularly went out to dance clubs to experience club music and culture. The overall goal for the record was to create a new sound for the band that was still recognisable as U2.