Actress Jessica Biel and singer Justin Timberlake arrive at the Metropolitan Museum of Art Costume Institute gala, Monday, May 3, 2010 in New York. Credit: AP Photo/Evan Agostini

Justin Timberlake and Jessica Biel hit some speed bumps during their five-year road to the altar, but the couple looked happier than ever when they exchanged wedding vows in southern Italy October 19.

The "LoveStoned" singer, 31, and the Valentine's Day actress, 30, tied the knot in front of 150 close friends and family at the Borgo Egnazia, a vast hotel complex surrounded by olive trees and cactus plants, multiple sources tell Us Weekly.

The fairytale-like building is like an ancient fortress with whitewashed walls; the rooftops are dotted with turrets and chimneys and tiny windows. To mark the occasion, the entire hotel was decked out with white floral displays, per a source -- even the balconies facing the main courtyard were dressed with white blooms.

When the couple were introduced as "man and wife" in the hotel's chapel at 7:30 p.m., attendees cheered loudly. As the newlyweds left the chapel, walking down a grand staircase, they were showered with small, white, heart-shaped flower petals. The wedding reception was held inside the hotel complex.

Friday capped off a week's worth of celebrations with family and friends, including comedian Andy Samberg, 34,'N Sync singer Chris Kirkpatrick, 41, actress Beverley Mitchell, 31, hip-hop producer Timbaland, 40, and music manager Johnny Wright, 52. A source previously told Us Timberlake and Biel first fell in love with the Mediterranean country while attending the 2008 Italian nuptials of Mitchell, Biel's close pal and former 7th Heaven costar.

Timberlake and Biel split twice during their five-year courtship, in 2009 and 2011. The musician proposed to the Total Recall actress in Jackson Hole, Wyoming, in December 2011 with a 6-carat diamond ring.

"I answer to a higher power now," Timberlake joked during a recent press conference with the Hollywood Foreign Press. "We have a couple of rules in our relationship. The first rule is that I make her feel like she's getting everything. The second rule is that I actually do let her have her way in everything. And, so far, it's working."