Although a few established acts have dabbled in the free download gameâ€”Radiohead and NIN are obvious examplesâ€”Pretty Lights' Derek Vincent Smith built his entire career that way--from the ground up. The Fort Collins-based producer is practically in a league of his own. Name one other artist who hasn't made a single penny on recorded music and is now capable of packing Red Rocks--a feat Smith is reprising this Saturday. It is a trajectory that many will inevitably imitate. Girl Talk might his only near-peer--business model-wise--but unless Crickets Chirping is the alias of a band not yet on my radar, the answer is clear.