Being in a rock-and-roll band typically doesn't pay the bills, and it seems like half of Denver's musicians earn their keep at either City, O' City or its sister restaurant, WaterCourse. And those who don't work here come here, anyway: Chella Negro has a song called "City O'," in honor of her time at this restaurant. We're not sure if it's the lack of meat, the inspirational quotes on the chalkboard above the bar or the Girl Scout cookies, but something about Denver's greenest hangout attracts some of its best creative types.