this song is amazing... I don't don't know that I've ever gotten chills like that listening to a song for the first time. It's so simple yet beautiful and is automatically gripping and relatable. I think this will smash like Someone Like You.
Every year a song comes along that defines a moment so beautifully and brutally that you can't turn away. It elicits the purest, most powerful, and passionate gut reaction possible, and it resounds around the world with seismic impact. Recently, you can think of numbers like "Rolling in the Deep" or "Somebody That I Used to Know". They're perfect for that time, but they also transcend and become timeless. Now, A Great Big World's "Say Something" featuring Christina Aguilera is that song for 2013.
The slow, striking piano practically pulls on heart strings as Ian Axel and Chad Vaccarino paint a portrait of breaking up that's Oscar-worthy. There's a cinematic heft to the track that makes it utterly vivid and vibrant. Christina Aguilera's performance remains one of her best ever, fortifying the hook and harmony masterfully. You'll hear it once, and you'll never forget it.
We'll be talking about "Say Something" for a long time to come. It's a standout for 2013
and her performance on the Voice.. 
This song is gonna be huge