Justin Timberlake dedicated a new song to his new bride Jessica Biel as the couple celebrated its nuptials in Italy on Saturday.

The couple exchanged vows before family members and close friends at the Borgo Egnazia resort and the reception was one hot ticket event.

The Roots drummer Questlove played DJ at the party and the groom hit the stage to croon a new tune.

One party guest tells Us Weekly magazine, "Questlove played a bunch of Justin Timberlake songs... and Justin performed one song at the wedding - it's a new one that he hasn't released yet. He dedicated it to Jessica."