Katy Perry's choice of attire when she attended the MusiCares Person of the Year Tribute to Paul McCartney in Los Angeles on Friday night was interesting to say the least. The singer - who signed her divorce papers with a smiley face earlier in the week - was wearing what appeared to be a wedding dress, which she'd teamed with an absolutely humongous fascinator. How bizarre, did she lose a bet? During the evening Katy and her ...