Stage chemistry goes a long way. For example, Bush and Gwen Stefani kinda suck, right? But throw them on stage together, have them sing "Glycerine" and, well—humina humina humina. Same goes for the two singers of Royal Teeth, who perform with such a striking intimacy that it's hard to look away.
Not that the band necessarily needs chemistry, as their music speaks for itself. In this episode of A Trolley Show, the New Orleans band performs "Stay," from their album Glow. With a performance like this, it's easy to see why they were recently chosen to perform on American Idol.