greatest Britney Spears songs. Spears led the teen pop pack of Christina Aguilera, Jessica Simpson and Mandy Moore, who were all seen as "pop princesses" gaining chart success in 1999. These four performers had each been developing material in 1998, but "...Baby One More Time" changed the market in December, opening the door for the others. Rolling Stone wrote that Spears "spearheaded the rise of post-millennial teen pop ... Spears early on cultivated a mixture of innocence and experience that generated lots of cash". Barbara Ellen of The Observer has reported: "Spears is famously one of the 'oldest' teenagers pop has ever produced, almost middle aged in terms of focus and determination. Many 19-year-olds haven't even started working by that age, whereas Britney, a former Mouseketeer, was that most unusual and volatile of American phenomena—a child with a full-time career. While other little girls were putting posters on their walls, Britney was wanting to be the poster on the wall. Whereas other children develop at their own pace, Britney was developing at a pace set by the ferociously competitive American entertainment industry". Scott Plagenhoef of Pitchfork noted: "songs like Nirvana's "Smells Like Teen Spirit", Dr. Dre's "Nothing But a G Thang", and Britney Spears' " ... Baby One More Time" altered the landscape of pop culture so quickly in large part because they were delivered to all corners of the U.S. simultaneously by MTV. ... MTV's ability to place a song and musician into the pop music conversation was unparalleled at the time, and by the end of the decade that meant absurd levels of both financial and creative commitment to music videos." PopMatterss writer Evan Sawdey commented that Spears's concept for the song's music video was the one responsible for her immediate success, saying that, as a result, the singer "scored a massive No. 1 single, inadvertently started the late '90s teen pop boom, and created a public persona for herself that was simultaneously kid-friendly and pure male fantasy. Her videos got played on both MTV and the Disney Channel at the same time, showing just how well Spears (and her armies of PR handlers) managed to walk that fine line between family-friendly pop idol and unabashed sex object." Accolades Formats and track listings French CD single; US and UK cassette single "...Baby One More Time" – 3:30 "Autumn Goodbye" – 3:41 Australian CD maxi single "...Baby One More