Actor/singer JUSTIN TIMBERLAKE had more than nerves to contend with at his weekend wedding - he fell ill just before the big day.

The Cry Me a River singer and actress Jessica Biel celebrated their nuptials with friends and family in southern Italy during a beachfront bash complete with fireworks and a bar night at Borgo Egnazia before exchanging vows on Friday (19Oct12).

But it appears all the partying took its toll on The Social Network star and he was struck down with a nasty cold.

A source tells UsMagazine.com, "Justin wasn't feeling well all week and on his wedding day... (He) stayed with his family most of the time. They had a schedule of everything for guests to do throughout the weekend."