9 p.m.-midnight, Mobtown Ballroom, 861 Washington Blvd., (443) 699-3040, mobtownballroom.com, $15.
The people at Mobtown Ballroom have made some pretty ballsy claims about tonight’s event. First, they say, this will be the best Monday of your life. Second, it’ll be so amazing that you should go ahead and take the day off work ahead of time. Call them on their bluff and check out this night of dancing, featuring New Orleans jazz musicians Meschiya Lake and the Little Big Horns, and be sure to get there early for the drop-in dance lesson at 8 p.m.