I dunno. Wouldn't it be infinitely better if the singers had a THEME for their song choice for each round (eg. Rock, Pop, [Insert random famous artist here], 1960s, 1980s)? Some guy can just sing their way through the whole competition by singing just one style of music. That's lame.
Unless of course there IS a theme system going on here. If so, make it public? I dunno.
Unless of course there IS a theme system going on here. If so, make it public? I dunno.