Its been 17 years since Britney Spears released her massive hit, ‘Hit Me Baby, One More Time.” Since her debut single, fashion has changed quite a bit. Baggy jeans are no longer a commodity and full leather outfits are not quite as popular anymore. While her public perception has also changed drastically, Britney always had great live performances and awesome outfits to go along with them. Let’s take a look back down memory lane and see 21 awesome Britney Spears outfits throughout the years brought to you by Cosmopolitan.