Ricky Reed of Wallpaper

Ricky Reed of Wallpaper on August 3rd, 2014 in Grant Park, Chicago photographed by Ramona Rosales.

Ramona Rosales

Ricky Reed -- leader of the genre-melding California group Wallpaper -- scored a huge hit this year via Jason Derulo's inescapable song "Wiggle," which Reed produced.

When Billboard sat down with Reed at Lollapalooza 2014, he chatted Wallpaper, Derulo and another A-lister he's been working with: Pitbull.

Reed says Mr. Worldwide is "the coolest guy I've come across in the whole music industry." He explains how his Pitbull collabo, "Fireball," came about while enjoying the titular liquid on a beach house roof, and why it's a "quasi ode to day drinking." Check out the interview below.