I always have a very fun time at Grace O'Malley's. It's very busy on Thursday and Friday nights, so go early to avoid waiting in line. They do charge cover, which I find super annoying, but if you have a student card - it's free. They usually have a live band - sometimes an east coast band. In between sets, they usually play top 40. It's a good place for a group because it pleases the club and pub crowd.