We've looked at some truly legendary country music stars on this list so far, but Oklahoma's Garth Brooks might have them all beaten. A common mistake that country stars make when trying to break into the big time is to stray too far from their country roots in an attempt to reach the pop audience. Brooks hasn't done that. He's embraced a hint of pop, but stayed country enough to bring the two sounds together in harmony. That's why he's sold more than one hundred million records worldwide.
Brooks always knew what he wanted to be, but made sure he went to school just in case it didn't work out the way he planned it. He needn't have worried. It was while he was singing in local bars during his time at Oklahoma State University that he was first spotted. Thirty years later, he's still selling out entire stadiums.