Can a song be gay? It's a question that doesn't have an easy answer, but it's sure fun to try to puzzle out. And the True Colors tour that has been traveling across America this month would seem to be a good place to do that. The tour, founded by Cyndi Lauper last year, is highly unusual in that its main purpose, besides entertaining crowds, is to rally for gay, lesbian and transgender rights. The tour features a diverse cast of performers — including the B-52s, Tegan and Sara, the Indigo Girls, Rosie O'Donnell and Regina Spektor — onstage ...