The X Factor: Little Mix admit they owe everything to mentor Tulisa and they can't wait to sing with her tonight at Wembley Arena. The N-Dubz star put her "little muffins" together, but now's their chance to shine with a Alicia Keys double of Empire State Of Mind and I Ain't Got You, accompanied by their new best friend. See more at http://itv.com/xfactor Buy Little Mix's performances from iTunes: http://bit.ly/tjGOj5
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If I Ain't Got You" is a song recorded, written, and produced by American recording artist...