Carl Sagan ft. Steven Hawking singing...

[Mike]

[ame=http://www.youtube.com/watch?v=zSgiXGELjbc]YouTube - Carl Sagan - 'A Glorious Dawn' ft Stephen Hawking (Cosmos Remixed)[/ame]

Thought this was pretty cool. The effect is explained by Weird Al in this video:

[ame=http://www.youtube.com/watch?v=fYzv-AVi78E]YouTube - "Weird Al" Yankovic Helps Explain Auto Tune (Know Your Meme)[/ame]

Fun stuff.

 

[conv3rsion]

very cool

 

[Infinite Keith]

AHahaha! That song is fucking amazing!

 

[retard]

HAHAHA! can't believe my eyes. Fucken awesome.

 

[kblessinggr]

[ame=http://www.youtube.com/watch?v=OpJGZ9RHAvU]YouTube - Billy Mays - The Auto-tune Infomercial Ballad (ft. the Scatman)[/ame]

 

[allco]

hahaha very cool video!

The mashup artists are getting crazy creative.

Everyone's noticed why vocals are so up front in the mix in records in the late 90's to present as compared to previous era's... because they've been tweaked (to perfection) with auto-tune.

There's slews of other products for live purposes too - one that's noteable is TC Helicon:

TC-Helicon | Vocal Harmony, Vocal Effects, Correction, Monitors and Plug-ins

TC-Helicon Videos | VoiceLive 2 - Ten Preset Showcase