Justin Timberlake's grandmother has already starting planning his wedding.

Even though Justin has yet to propose to girlfriend, actress Jessica Biel, his grandma Sadie Bomar has already chosen a venue for the couple to marry in.

Sadie said; "I just want them to be happy. Justin should get married in his mother Lynne's back yard in Tennessee. She has a big yard with beautiful flowers. I think it would be perfect.

Jessica's really sweet. She's his age and isn't possessive. I think their personalities are a lot alike."

A friend of the pop star, who's been dating Jessica since last January, claims he has talked about marriage but admits he has no clue that his family has begun planning out his big day.

The source told Britain's The Sun newspaper; "Justin started talking about marriage earlier this year. His family were delighted and started planning his big day. I'm not sure how much he knows about it."

In June (08), Justin was spotted shopping for an engagement ring and had reportedly asked Jessica's close friends to help him out.

Meanwhile, Justin recently revealed he nearly chose to pursue an acting career rather than becoming a pop singer.

Justin, who has taken a break from the music industry in order to concentrate on acting, can be seen currently in the new movie 'The Love Guru' alongside Mike Myers.

The 'Sexyback' star revealed that a recent conversation with his stepfather reminded him just how close he was trying to make it as an actor rather than focus on music.

He said; "He reminded me, and I had totally forgot about this, but I got a phone call when I was 14 saying there was somebody down in Orlando and a record company and BMG in Europe that will sign me and I went.

But two weeks before that, the plan was for me and him to drive to LA for a pilot season. So I guess everything turns out the way it's supposed to."