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'The X Factor' contestants sing tribute to victims of Newtown tragedy

"The X Factor" began its finale week Wednesday with a touching tribute to the 20 children and six adults tragically slain during last week's Sandy Hook elementary school shooting in Newtown, Conn.

After a short introduction by Simon Cowell, the "X Factor" contestants -- Beatrice Miller, Arin Ray, Diamond White, CeCe Frey, Paige Thomas, Jennel Garcia, Vino Alan, Emblem3, Tate Stevens, Fifth Harmony and Carly Rose Sonenclar -- each contributed a verse of Michael Jackson's "You Are Not Alone." 

VIDEO: 'X Factor' Top 12 Sound Off on Their Mentors

The performance -- aided by a children's choir -- concluded with the names of the departed students and educators on the screen behind them. 

'X Factor' Finale Recap: The Underdogs Vs. The Front-Runners

Earlier this week, NBC's "The Voice" honored the victims with their own heartfelt offering of Leonard Cohen's "Hallelujah."

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