I'm a fan for five simple reasons.
~They always perform live and are great at it.
~I can relate to practically every song they sing. They aren't just pointless songs about buying a person a drink or getting low, they actually have meaning to them.
~There voices are unique and you can't help but keep listening when you hear them.
~They make harmonizing seem easy, when it really isn't. I love when they harmonize!!
~They are gorgeous!!