Calvin Harris achieved blockbuster success without ever resorting to a trademark sound. The versatile songwriter, producer, and DJ is just as good at making high-impact EDM bangers like “Iron” as he is wistful deep house with soaring pop overtones, like “Thinking About You.” The superstar hitmaker can be tongue-in-cheek too, judging from the playful nu-disco of 2007's “Merrymaking at My Place.”