Britney Spears released her debut single, "...Baby One More Time", in October 1998 which peaked at number-one on the Billboard Hot 100 in January 1999 and topped the chart for two weeks. It opened at number-one in the UK Singles Chart selling over 460,000 copies, a record for a female act at the time, and became the top-selling single of 1999 and the 25th most successful song of all time in British chart history with over 1.45 million units sold. Gillian G. Gaar, author of She's a Rebel: The History of Women in Rock & Roll (2002), documented that "eyebrows were raised over the schoolgirl-in-heat persona Britney Spears projected in her [music video for ...Baby One More Time], along with an increasingly revealing series of stage outfits".
