Photo Credit: YouTube

Every once in a while, a song comes along that is subtle, but packs so much power and emotion. "Say Something" by A Great Big World is one of those songs. 

Christina Aguilera was so moved by the song that she's lent her voice to the song, and even performed the song with A Great Big World on The Voice a few weeks ago. 

Christina Perri, who is #InControl on MYfm this week said that after hearing the song, she immediatley went home, learned the song and posted a cover on YouTube. 

A Great Big World are coming to the MYstage today, and we'll have video soon. In the meantime, watch the brand new video for "Say Something" with Christina Aguilera.