If your looking for great food while playing in Bethlehem try;
http://www.nawabcuisine.com/
its on point. If Mexican is your bag La Lupita is authentic and well priced. Nightlife is tough in Bethlehem, one spot that you might not hear about too much is "The Funhouse" a dive bar/live music venue where "Fun people meet".
Both of those locations are a short drive from the sands and located in south bethlehem.