Complex sentence: "Timeless" is a remake of Kelly Clarkson and Justin Guarini's 2003 original English version, which has also been remade by Tina Arena and Kane Alexander in 2006.
Split into simpler sentences: Timeless is a remake of Kelly Clarkson and Justin Guarini's 2003 original English version. This song has also been remade by Tina Arena and Kane Alexander in 2006.