VIDEO: Jennifer Lopez, Keith Urban, Harry Connick Jr and Randy Jackson perform on American Idol

For the first time ever the judges of American Idol perform on stage. Jennifer Lopez, Keith Urban, Harry Connick Jr together with mentor and former judge Randy Jackson perform 'True Colors' and 'Go Your Own Way' on the American Idol 2014 Finale.

Jennifer's vocal track was a bit fast in the beginning and sounded like she had helium voice.

This was an interesting performance. It was a nice surprise to end the show.

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