Sirius rolled his eyes as he joined in. All told, he didn't do too terribly badly, but he made sure he ended the song howling like a dog. "I even hurt Padfoot's ears with my singing," he quipped. He motioned toward the cake. "Come on, Vera, make a wish and blow out the candles. And, Moony, that's the second time you've elbowed me in ten minutes--I'm going to have bruises for sure."