Take advantage of the long weekend by heading out on Sunday night when dbar rocks out with some help from their musically-inclined friends. Popular Boston-based cover band B-Side Charlie will be in the Dorchester restaurant for a night filled with your favorite tunes. They’re even bringing back their original vocal lead for a few numbers. The music starts at 9:00pm (and goes to 1:00am), but you should plan on stopping by a little earlier to grab a bite off of Chris Coombs’ dinner menu. There’s no cover but if you want a reservation for dinner, call 617.265.4490.