He's caught a lot of flack for using auto-tune, but clearly he doesn't need it.

There's been a surge of videos recently of artists who use auto-tune to sing, but who can't sing well without it. Cue Avril Lavigne, Ke$ha, etc.

On the opposite end of the spectrum is "Buy U A Drank" singer T-Pain. He's used a LOT of auto-tune in the past, but recently he did a "Tiny Desk" concert for the folks at NPR...and proved that he doesn't need auto-tune to sing, and sing well. That man has got some serious soul! Nice to see some raw talent for a change.

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