(CNN) — If you were a teen at the turn of the millennium, chances are your musical taste fell into one of two camps: You were either a pop kid, with the likes of Britney Spears, Christina Aguilera, *NSYNC or Destiny’s Child on your Sony Discman, or you were a “new indie rock” kid with posters of Pete Doherty or The Strokes’ Julian Casablancas on your bedroom walls.

The latter genre was loosely defined. Indie rock acts ranged in style and sound. The Libertines, Yeah Yeah Yeahs, Modest Mouse and Amy Winehouse might all be considered part of the movement, albeit in very different ways. What they shared, though, was an aura of cool — one that Los Angeles-based photographer Piper Ferguson spent much of her early career capturing.