Popstar Sarah Geronimo shows up at boyfriend Matteo Guidicelli’s concert on Nov 30. Matteo performed at the KIA theater during his concert dubbed “Hey Matteo.” It was on this event that Matteo said, “My Sarah’s never gonna leave me.” Sarah Geronimo and Matteo Guidicelli are becoming everyone’s favorite couple. They’ve been together for three years now and they’ve both been …