Pop star gives surprise performance at couple's wedding

Justin Timberlake and his wife, Jessica Biel, were at the wedding of one of Jessica's closest friends Dana Panzer and Amy Wicker.

At the reception, Justin surprised everyone by giving the newlyweds a very special wedding gift.

The singer and actor took to the stage to sing his hit single  to the surprise of everyone present.

Sitting behind a keyboard, he said:

"Imma start something, and all the fellas gonna look at the ladies, who just got married tonight. And all the ladies gonna look at the ladies, you know what I'm saying."

He went on to sing a number of other hits, including Papa's Got A Brand New Bag.