SEEN ON THE SCENE: Former President Bill Clinton popped into the Pump Room Monday night for dinner, greeted the staff and enjoyed a special vegan meal, prepared by chef Moosah Reaume. The ex-Commander-in-Chief and his guests opted to forgo dining in the iconic Booth One, preferring to sit at the chef’s table at back of the restaurant. (A bit more private too!) … Actress and Chicago native Marilu Henner was seen lunching at RL. … While in town for their sold-out show at the Aragon, Brit-rockers Bastille were spied supping at RM Champagne Salon in the West Loop, while “Chicago Fire’s” Charlie Barnett dined nearby at Nellcote on Randolph. … Brandon Marshall tried to forget the Bears big loss Sunday by heading to Harry Caray’s 7th Inning Stretch at Water Tower Place, joined by a group of family and friends. … Here for his House of Blues gig, Chicago-born singer and “American Idol” alum Chris Medina was seen chowing down on a bone-in rib eye steak at Harry Caray’s on Kinzie in River North. … While in Chicago for his performance at Navy Pier, EDM producer/DJ Skrillex dined at noodle joint Ramen-san, and then dashed over to the Three Dots and a Dash tiki bar.