Star sightings: Charlize Theron, Joel Edgerton, Rahm Emanuel

SEEN ON THE SCENE: Fans of Oscar winner Charlize Theron and actor Joel Edgerton, both in town to shoot “American Express,” enjoyed spotting the two stars enjoying cocktails in the Library Bar at the Public Hotel the other night. … Recording superstar and Chicagoan R. Kelly got his healthy fix at the newest Lyfe Kitchen location in the New City complex on Clybourn — spied noshing on a grilled chicken and avocado sandwich, while sipping some lemonade. Kelly just announced a tour that includes a May 7 concert at the Allstate Arena. … Yes, that was Cedric the Entertainer and Anthony Anderson seen hanging out at Parliament Chicago, while the “Barbershop 3” stars were in town to promote the upcoming film. … “Vanderpump Rules” star James Kennedy dined at STK Chicago. … Mayor Rahm Emanuel checked out the new Mexican restaurant Dos Urban Cantina, located on West Armitage in Logan Square. … After the downtown parade, 2016 St. Patrick’s Day queen Erin Mulcahy and her court celebrated at a luncheon at O’Brien’s Restaurant & Bar in Old Town — with all the traditional features including corned beef and cabbage and the Shannon Rovers. … “Empire” star Serayah (“Tiana Brown”) hosted the recent Red Parka Party at the Virgin Hotel Chicago to benefit the One Warm Coat program, which provides lightly used garments for needy Chicago Public Schools children. … The Blackhawks’ Andrew Shaw “earned his wings” as he participated in the high-flying fun at the new iFLY in Lincoln Park — which claims to be the world’s largest indoor skydiving facility. … Speaking of the Hawks, the brunch set at the Pump Room was happy to see the team’s goalie Corey Crawford the other day.