Brian Lee broke into pop songwriting's upper echelons with the upbeat Owl City/Carly Rae Jepsen collaboration “Good Time.” Since hooking up with his primary creative collaborators watt and Ali Tamposi, Lee has been behind a slew of radio-ready smashes' big hooks, helping craft indelible choruses for Camila Cabello's sultry “Havana,” Hailee Steinfeld and Florida Georgia Line's thumping “Let Me Go,” and Fifth Harmony's bouncy “Work From Home.”