Back in the day, you couldn't really get away with being a mediocre singer/songwriter/performer if you couldn't ACTUALLY sing. Today - all you need is a $300 version of ProTools, some strategic button-clicking, and BOOM! You're Rebecca Black.
Ok, bad example. The point is this: auto-tune can fix the mistakes that previously were unfixable, and usually meant you weren't going to be successfull, which is why it's so nice to hear an artist from today who can actually sing!
Enter: Ke$ha. Yep. She's actually really good. Peep it below. [PopCrush]
Marry me, Ke$ha.