Justin Timberlake, Jessica Biel wedding had confidentiality agreement

Jimmy Fallon has revealed that he had to sign a confidentiality agreement for Justin Timberlake and Jessica Biel's wedding.

The comedian - who met Timberlake through the singer's appearances on Saturday Night Live - said that guests were required to sign the document before attending.

"I signed a contract," Fallon told Andy Cohen during an appearance on Watch What Happens Live yesterday (November 1).

Despite admitting that he couldn't go into detail about the nuptials, the 39-year-old talkshow host admitted that he found the ceremony "beautiful".

"She looked like a princess," he said of Biel. "It was just insane. Everything was beautiful.

"I'm a sucker for weddings. I'm a fun person to invite to a wedding. Because I dance, I get up and drink. But then, I weep."

This week, Timberlake's former 'N Sync bandmates said that they harboured