He कहा as much in an interview he did in लंडन while promoting My World 2.0. Basically he कहा that it depends on the situation, but that he would do it. Justin isn't only up for dating other stars, he would तारीख, दिनांक anyone if she was the right sort of girl.
And another detail: Justin likes girls with nice smiles, pretty eyes and who can make him laugh. This is his विवरण of his dream girl. Do आप fit the mold? The आप may be just right for Justin!