American Idol runner up Jessica Sanchez and grammy winner Jennifer Holiday belted out a hair-raising performance of "I am telling you I'm not going" in tonight's grand finale show. Holliday's powerful voice capitivated the audience, as Jessica joined in an the two put on a fantastic performance.

No doubt that Jessica Sanchez is a gifted singer. Singing alongside Holliday, their vocals blended together as they passionately performed the number. Judges Jennifer and Randy jumped up and down in excitement after their performance. The crowd absolutely loved it.

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