Kelly Clarkson gave quite the emotional performance on Thursday, when she performed after being a guest judge on American Idol.
The first Idol winner returned to the stage to sing "Piece by Piece," a heartfelt song about her father who left her when she was six years old. She wrote the song, while she was pregnant with her first child, about how good of a father her husband is and will be.
'American Idol' Recap: Final Top 10 Sing for America's Vote, Kelly Clarkson Comes Back to Judge