Jennifer Lopez sure knows how to vacation in style. Currently holidaying in the South of France, the American starlet, joined by her kids and hubby, Marc Anthony, is staying aboard Roberto Cavalli’s boat. The Italian designer has even provided a special wardrobe for the singer and actress for two major events she’s due to attend in the region. On Tuesday, Lopez will perform at the World Music Awards in Monte Carlo, where she will receive an award for Outstanding Contribution to the Arts. Then, on May 20, she’ll join Eva and Roberto Cavalli as their guest of honor at the amfAR dinner at the Hôtel du Cap-Eden-Roc