sentences:  It remained on top of the UK Singles Chart for four weeks before being knocked off by the Sugababes' first single from their fifth studio album "Change", "About You Now".The song ended 2007 as the year's 15th biggest-selling single in the UK.On the official ARIA charts in Australia, it debuted at number one but fell to number two the following week when Delta Goodrem's comeback single took the top spot.