Justin Timberlake to perform NSYNC dance at his own wedding

Justin Timberlake has reportedly been preparing to perform a dance to one of his own songs at his upcoming wedding to Jessica Biel.

The Sun reports that JT is rehearsing a “tongue-in-cheek” routine to his former *NSYNC boyband’s song  – It’s Gonna Be Me – along with his ushers and best man.

“Justin has been working on this for months,” an insider claimed. “Jessica used to love the track growing up and he wants it as a special treat.

“It will be very much tongue-in-cheek. There will be loads of exaggerated boyband moves and poses.

She’s going to love it.”

The video for ‘It’s Gonna Be Me’ saw Justin and his *NSYNC bandmates made up as string puppets.

The couple, who became engaged in late 2011 after some time apart, are said to be tying the knot in a low-key ceremony in Italy this weekend.