"not such an innocent girl" was released on 17 september 2001 as the lead single from the album. in the united kingdom, the single faced competition in a hugely hyped chart battle with kylie minogue's single "can't get you out of my head". on the chart date of 29 september 2001, "not such an innocent girl" debuted at number six on the uk singles chart with first week sales of 35,000 units, while "can't get you out of my head" debuted at number one with first week sales of 306,000 units. it has sold about 80,263 copies altogether becoming the 163rd best seller of 2001. it sold 36,000 copies in its first week of release in the united kingdom, and about 80,263 copies altogether becoming the 163rd best seller of 2001.