Kelly Clarkson makes emotional return to American Idol

LOS ANGELES (FOX 32 News) - Kelly Clarkson made an emotional return to American Idol Thursday night on FOX. 

During Thursday night's episode, Clarkson appeared as a guest judge and also performed her song Piece By Piece.

During the emotional performance, she burst into tears, even making judges Keith Urban and Jennifer Lopez get emotional too.

Clarkson told host Ryan Seacrest, "I'm pregnant, it's nostalgic, I can't believe it's the last season."