[Norm Lenhart]

Good singers not needed

http://www.antarestech.com/products/auto-tune_live.shtml

Or if you are doing it in a studio, Melodyne. I have it. You can make anyone pitch perfect and morph sound like play dough if you are good.

Anyone with a body/looks can be a star.

[AnAmericanAbroad]

You don’t even need to be human anymore.

Hatsune Miku, Vocaloid/anime superstar.

http://www.youtube.com/watch?v=GBucCNH78q4

[Alex Murphy]

Good singers not needed

http://www.antarestech.com/products/auto-tune_live.shtml

Or if you are doing it in a studio, Melodyne. I have it. You can make anyone pitch perfect and morph sound like play dough if you are good.

Anyone with a body/looks can be a star.

And they'd better be nice to the recording engineer:
Sound man disciplined for raising pitch on soloists