Brittany Murphy, Brittany Spears Michael Bezjian/WireImage ; Jon Kopaloff/FilmMagic The former home of Brittany Murphy and Britney Spears is on the market once again. The Hollywood Hills home is being listed for $17,995,000, according to Zillow. It was also the site where Murphy was found collapsed on December 20, 2009. The Clueless actress was then…