Details have emerged about the look and feel of one of the biggest celebrity weddings of the year: Justin Timberlake and Jessica Biel 's nupitals this past Friday in Southern Italy.

According to Us , Justin   serenaded his bride with a new song, and the couple made sure the posh Borgo Egnazia resort was covered in lush white floral arrangements for their special day.

A witness tells the magazine, “Even the balconies facing the main courtyard were dressed with white blooms.” And after Justin and Jessica exchanged vows, “Small white heart-shaped petals fell on the couple as they left the chapel,” the witness adds.  The insider says the reception location was also "draped in white and filled with white flowers."

As for entertainment at the reception, The Roots ' drummer Questlove deejayed at the party, dropping a number of Timberlake’s songs, but no 'NSYNC numbers.   A source tells  Us Justin performed one song at the wedding, adding, "It was a new one that he hasn't released yet. He dedicated it to Jessica."

Copyright 2012 ABC News Radio