Christina Aguilera and A Great Big World will perform a Duet Tomorrow Night on The Voice!

A Great Big World are having GREAT things happen for them! They are two young singer-songwriters from NYC and they are staring to get a lot of buzz from the release of their latest single "Say Something." Have you heard it? We've been playing it and love it! A Great Big World are very talented and people are taking notice. People like Christina Aquilera! She asked them... yes..Xtina asked the guys if she could sing on a re-recording of "Say Something" because it inspired her. What a compliment for the duo!

Christina will be performing it alongside the the guys tomorrow night (Nov. 5th) on The Voice! If you can't wait to hear it until then, watch some behind-the-scenes footage of their recording below!