WAIT--- That cat was in the house on the night of the attack. And Voldemort's soul attatched to Harry's because he was the only other living thing in the house. Or so we thought! So that cat's another horcrux!
Mareena has the best voice. Yeah, she's an alto, and yeah it's not soprano. But still she has a great melodic hypnotysing voice that seems strange alone but great with others. She wins ever year at the talent show though. And it fits with her personality.