Source: Bang Showbiz NewsPhotos: AFP, ReutersJessica Biel is legally changing her last name to Timberlake but will continue to use Biel professionally.The newlywed actress - who married singer-turned-actor Justin Timberlake in Italy last Friday (19.10.12) after dating for five years - is planning to legally change her last name but will continue to use Biel professionally.A source told E! News: "She said she's changing her last name legally and Timberlake is the coolest last name she has ever heard."The 'Total Recall' actress tied the knot with the 'SexyBack' singer following four days of celebrations at the luxurious Borgo Egnazia resort in Puglia, Southern Italy, and the couple say they couldn't have asked for a better day.Jessica, 30, sighed, "It was a total fantasy experience", while 31-year-old Justin added, "It was a really special evening".The newlyweds invited 100 guests to join them for their weeklong wedding celebrations, including showbiz pals Jimmy Fallon, Andy Samberg and Timbaland, and they were determined to show everyone a good time after they made the effort to travel across the globe for them.According to sources the couple presented their guests with lavish hampers containing locally made olive oil, bread and fine wine.Justin joked: "It was a lot to ask of them to travel, so we figured we'd give our guests a good party!" The former N' Sync singer serenaded Jessica with a romantic self-penned ditty on his guitar as she walked down the aisle in a pale pink Giambattista Valli Haute Couture gown. He said: "It was an original piece I wrote specifically for the evening and for her."