Geek musician/singer Jonathan Coulton (Skullcrusher Mountain, Re: Your Brains) lives in Brooklyn, New York, which isn't all that far from the Lehigh Valley. Yet to the best of my knowledge, he's never played here, which is something I'd like to change.
There's a Lehigh Valley "demand" for him in Eventful:
This is basically a webified way of asking someone to come play in your area; by accumulating votes we can show that there's enough folks in the Lehigh Valley to make it worth his while.
Click the link and vote if you'd like to see him perform in the area.