LOS ANGELES: The singer has apparently set his sights on a young lady called Katherine Gazda. Katherine Gazda is an 18-year-old singer/songwriter who was introduced to Justin by a mutual friend, according to Britain’s Sunday Mirror newspaper. “They hit it off straight away and are both really serious about one another,” a source says. “Their relationship has been very up and down because she can’t stand the way he has been behaving recently. “She is desperately trying to help through all the scandal and help him regain his clean-cut image. “She is begging him to settle down, but she’s tired of being played off another girl.”–SP