Pentatonix

Watch The Sing-Off winners, Pentatonix, perform “How Will I Know” as a tribute to the late Whitney Houston. As it happens, the tune hit #1 on the Billboard Hot 100 on this day in 1986.

Watch the video after the jump.

Check out Pentatonix, covering “That I Used to Know” by Gotye feat. Kimbra. It’s another flawless interpretation from the winners of The Sing-Off.

Video after the jump.

VIDEO: Watch The Sing-Off winners, Pentatonix cover the Maroon 5 hit, “Moves Like Jagger.

Watch below