The single was released on September 17, 2001.
"Not Such An Innocent Girl" debuted at #6 on the U.K. Singles chart with sales of 35,000 units during its first week.
Altogether, it has sold about 80,263 copies.
The music video for "Not Such An Innocent Girl" has a futuristic theme and features two Victorias: one dressed in all-white with blonde hair ("the good girl"), and the other in all-black with jet black hair ("the bad girl").
The video culminates into a "dance-off" and motorcycle race between the two Victorias.
The complex video was shot almost entirely on a green set with a great deal of post-production, making it one of the most complex solo Spice Girl videos to date.