HAVE SOME FAITH: George Michael wrote songs that informed the sexuality of millions of young girls around the world—songs that went on to become gay anthems, long before he came out. The 25Live Tour promises to be the hottest, funnest, gayest, screamy-est concert Key Arena has seen all year. Wave to this Seattlest who will be sitting in the second row. 8 p.m. // Key Arena, Seattle Center // $49.40-$250 A BIG NIGHT OUT: Columbia......