Anyone who listens to contemporary radio knows that Five for Fighting is responsible for the hits “Superman (It’s Not Easy)” and “100 Years,” but can anyone name all five musicians? Nope. It’s a trick question. Five for Fighting is a one-man band, less well-known as Vladimir John Ondrasik III. The singer-songwriter, a huge fan of the L.A. Kings, adopted the hockey penalty term as his stage name. But when Ondrasik returns to Ravinia on Sept. 14, he won’t be alone. He’ll perform his hits with a 30-piece symphony orchestra.