From IMDB:

Jennifer Lopez’s lucrative term as the ‘face’ of luxury goods brand Louis Vuitton is over, after company bosses had enough of her freeloading behavior. The actress/singer’s classy print adverts for Vuitton, which saw her clad in the brand’s clothing and clutching its distinctive bags whilst surrounded by scantily- clad hunks, spearheaded the company’s 2003 marketing campaign. But despite the popularity of the ads, J.Lo won’t be back - according to gossip website Pagesix, her behavior during the campaign shoot upset bosses so much they don’t want to work with her anymore. The Gigli star allegedly made a little too free with the freebies, and walked off the shoot with tens of thousands of dollars worth of top-grade merchandise - even sending her assistant back after she’d left to collect a nice pair of socks she’s forgotten. Representatives for LV declined to comment on J.Lo’s alleged actions, saying only, “It was only a one-time contract.”