Lorde is kind of a big deal in the music world. As many of you saw on Sunday night, The 17-year-old New Zealander walked away with a pair of Grammy award wins: Best Pop Solo Performance and Song of the Year for Royals.

Well deserved? You betcha! It's a catchy-as-hell tune: so much so that the forward-thinking Grammy folks opted for Lorde to belt out a live version during the ceremony. And you can bet your buns she crushed that tune like nobody's business.

That said, a newly-leaked version of the performance has hit the web. The only difference: no autotune on Lorde's vocals. Hear if you can spot the difference -- it's subtle yet noticeable.