A Great Big World and Christina Aguilera debuted the emotional video for their ballad Say Something.

The video depicts relationship hardships between two young couples, the fear of a girl who sits sadly on her bed and also shows an older man crying for his dying wife.

In the video, Aguilera sports a black dress, high heels and wears her hair slicked back in a bun. She eventually unites with band member Chad Vaccarino and they stand next to Ian Axel, who plays the piano.

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By the end of the song, Aguilera is in tears as she belts the powerful lyrics.

Aguilera, who approached the band to be a part of the song, explained her desire to work with the duo in a behind-the-scenes video released on Nov. 1.

"This song Say Something sort of is coming to me at a time when I'm feeling very inspired," she said in the clip. "I'm only taking on projects that feel good to me and represent, as always, a purpose of the here and now in my life and that's what this song, Say Something, actually does for me."

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The group performed the song on The Voice along with Aguilera earlier in November. They also sang it without the 32-year-old at the Victoria's Secret Fashion Show on Nov. 13.

The song will appear on the band's full-length album, Is There Anybody Out There?, expected on Jan. 14 on Epic Records.

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Christina Aguilera