Kelly Clarkson Rocks ‘What Doesn’t Kill You (Stronger)’ on ‘The X Factor’ (VIDEO)

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Kelly Clarkson returned to her roots – well, sort of – for a rousing rendition of her new single, ‘What Doesn’t Kill You (Stronger)’, on Wednesday night’s episode of The X Factor.

Standing before her American Idol judges Simon Cowell and Paula Abdul, Kelly rocked the heck out of the song in a hip-hugging gold dress, marking one of her best live performances in recent months.

The song is the second single off her chart-topping CD, Stronger. Her previous single, Mr. Know It All, reached the top 10 on the Billboard Hot 100 charts.

What did you think of Kelly’s mini-Idol reunion? Check out the video now, then post your thoughts in the comments.

Check out the full Kelly Clarkson “Stronger” lyrics on Direct Lyrics