>> The vivid, saturated colors that mark Mert Alas and Marcus Piggott's photography have long been associated with Louis Vuitton — they've shot every seasonal ad campaign for the brand, with maybe one exception, from as far back as 2002.

Spring 2009 may bring a new look — reports came today that former Versace face Madonna will be the face of the Spring 2009 tribal-Parisian Louis Vuitton collection, with Mert Alas and Marcus Piggott behind the lens, but other sources are saying not so — "they are wrong about the photographer." 

Steven Meisel did Madonna's Vanity Fair cover earlier this year and also collaborated with him on her infamous Sex book, but she's also worked with Steven Klein often, including this year's Dazed & Confused cover and W a couple of years ago, so both photographers could feasibly be front runners over Mert and Marcus.
*image: source