We're down to the final four on The Sing-Off and it's actually time for America to make a real vote. The groups opened with a multiple song mash-up and, from there, the competition was on. Read on for a rundown.
Round One – Mastermixes
Pentatonix - Forget You/Since U Been Gone- The group worried about the pressure of the competition and people complaining about how songs wouldn't sound right. Technically, that's what a mash-up is for: making several songs come together through magic. The two tracks managed to use the vocal limitations of five people correctly by picking one male and one female song. I thought the key of Scott took a little bit to adjust to, especially when Kirstin's vocals were a lot closer to Kelly Clarkson's. I liked the dub-step battle in the middle. My Grade: B+