‘The Voice': Watch the Full Performance Finale (Video)

On Tuesday night, the final four sang for their supper on NBC's hit singing competition

On Tuesday's two-hour performance finale of "The Voice," the four remaining competitors belted out original tracks, social media correspondent Alison Haislip threw down the word "Interwebs" and Cee Lo Green wore a flowing red outfit that can only be described as "wizard chic." It was that kind of night.

Who'll win season one of NBC's hit singing competition? Voting closed at 10 a.m. ET Wednesday, so the truth is out there waiting to be tallied. We'll find out for certain during Wednesday night's one-hour finale (airs live at 8 p.m. ET).

But current iTunes chart rankings could hold a clue about who the big winner will be: "Inventing Shadows," the original song performed by Team Blake Shelton finalist Dia Frampton on Tuesday's show, is number one on the pop singles chart.

To prep yourself for the big finish tonight, watch the entire episode below.