Dumping Kevin Federline seemed like it might have been a good move for Britney Spears, but everything since her 2006 split from her babydaddy has gone downhill. Rehab, flashing her goodies at the world, hanging out with Paris and Lindsay, aimless driving around L.A. with only the occasional pit stop at Starbucks or Rite-Aid...that was Britney's post-K-Fed life (while often dragging her two kiddies along for the ride), until that fateful February 2007 night when she showed up at a Tarzana, California hair salon and shaved her head, completely bald, with paparazzi snapping away.