Piece By Piece is the title song of Kelly Clarkson's seventh studio album "Piece by Piece." The song was written by Kelly along with Greg Kurstin, who produced the record.

It is a midtempo synthpop song about restoring someone's faith in love and family relationships, she promulgated the track as a sequel to her 2004 song "Because of You", but with a "happy ending".

After a discussion with her sister about their family life, Kelly introspectively co-wrote the song in a first-person narrative to her father, whose neglect of his family was used as a juxtaposition to her husband's unconditional love for her and their daughter, whom they both promised to never abandon.