While he might best be known as the award-winning producer of Taylor Swift’s first five albums, Nathan Chapman is also a not-so-secret songwriting all-star. He earned his first bit hit with Darius Rucker’s lusty twanger “Homegrown Honey”, but he doesn’t limit himself to country. He’s crafted swooning pop (Kesha’s “Godzilla”), swinging pop-soul (Michael Bublé’s “Baby I’ll Wait”) and rousing dance jams (Avicii’s “You Be Love”), too.