Try Qr Codes on your custom tickets!!!
According to Travis Robertson (How local businesses can benefit from QR codes) Driving traffic to Facebook is one of the best recommendation on using QR codes. "Send the person to a specialized tab on your Facebook Fan Page that invites them to "Like" the page and then receive a special offer for the event. Nearly 1 in every 10 people in the world has a facebook account."
Often times people save tickets for memories… a QR Code will allow them to instantly access more information about a performer whenever they’d like to.