What is power? At its base, it’s the ability to reshape the world around you according to your vision. And who in the music industry did so with more verve than the two people leading this year's Power 100? But they weren't the only ones exerting a powerful influence on the music business, and popular culture at large. Take our top five: the head of the largest music company in the world; a man who shunned the spotlight while quietly building a diversified music empire; the leader of the most powerful live entertainment company that has ever existed; and another who runs the largest music catalog. The 2014 Power 100 list is filled with similar forces from across the industry which, if you're lucky enough to work in, offer us inspiration, guidance and shining examples of how to get things done.