This is my favorite cover of this song, hands down. Nina Nesbitt is one of my favorite artists. She’s a singer/songwriter from Scotland and she just recently came out with her debut album and it is everything and more. The album is called “Peroxide” and I would highly encourage you to listen to it. Raw, powerful, and breathtakingly beautiful. But for now here is her cover of “Say Something.”
http://www.youtube.com/watch?v=roqUx5vX_J4