Complex sentence: The Piece by Piece Tour is the upcoming eighth headlining concert tour from American recording artist Kelly Clarkson, in support of her seventh studio studio album, "Piece by Piece" (2015).
Split into simpler sentences: The Piece by Piece Tour is the upcoming eighth headlining concert tour from American recording artist Kelly Clarkson. The tour is in support of her seventh studio studio album "Piece by Piece" (2015).