Thereâ€™s a new rock quartet in town whose sophisticated pop may include your next breezy summer melody. You can go ahead and thank Northern American for songs like the shimmering â€œRecord Foreverâ€ to go with your ice-cold beer beside the pool and the bluesy â€œDonâ€™t Be a Starâ€ to go down with that warm whiskey as you look over L.A.’s nightscape. They should know a good soundtrack to the City of Angels after all; Nate Paul, Shane Alch, Augusto Vega and Bruno Calenda all grew up in L.A. and after playing together for three years, they’ve finally released their debut EP, “Happiness Hungover,” with a lending hand from Norm Block (Plexi) on production. This isn’t noise-rock, but itâ€™s deliciously smooth. A full-length by Northern American is in the works.