Justin Timberlake, Jessica Biel Wedding Party Treated to Italian Beach Bash

Justin Timberlake and Jessica Biel will be getting married soon, but before they do, they're partying. The pair of Hollywood stars threw a pre-wedding party on a beach in Puglia, Italy Wednesday ahead of their nuptials.

Justin Timberlake and Jessica Biel's beach bash was attended by other stars in the industry, like his "D--- in a Box" co-star Andy Samberg and his music manager Johnny Wright. Others, like *NSYNC bandmate Chris Kirkpatrick, Biel's "7th Heaven" co-star Beverly Mitchell, were also in attendance to celebrate the happy couple, who has been together on-and-off since 2007.

The shindig took place at Cala Masciola beach, which borders the Adriactic Sea, at about 8:30 p.m. local time. Although it was chilly outside, the 50 guests enjoyed dinner, cocktails, and a display of lanterns decorating the area. After eating, Justin and Jessica treated their guests to another display- fireworks.

"The group took in a beautiful 10-minute fireworks show," a source told AceShowbiz.com of the night. "Everyone also dined on everything from pasta with clams and shellfish to octopus and vegetables."

After the display, the group returned to the hotel resort where the wedding is rumored to take place this weekend. E! News reported that the couple and friends also went out the next day to a grotto in Lama del Trappeto. Although the wedding location is still a secret, reports confirmed that they needed nine vehicles to transport Timberlake and Biel's various guests.

Both fans and fellow Hollywood stars are happy for the couple, as it's been a long time coming- nearly five years- that they have been dating.

"I know Justin. He's a good dude. He's a great guy. Great guy and she's an exceptional woman. I'm very happy for her," Biel's "Playing for Keeps" co-star Gerard Butler told E! Thursday.

"She's such a joy to work with," he also said of her at the film premiere of "Chasing Mavericks." "You have to be patient to work with me and she's patient. Her performance was incredible. Her comedy, her humanity, her warmth and just her talent. She's a great girl."