The US 'X Factor' judge - who has been married twice before - is set to tie the knot with her former manager Jason Trawick and while he is keen to get married this Christmas, Britney is delaying plans as she is "confused" about whether she wants her nuptials to be huge or intimate.

A source told National Enquirer magazine: "There is still no date or really even any plans in place yet. Jason really hope to get married around Christmas, and he wants to have a huge bash. Britney, on the other hand, is completely holding back from making any plans.

"She just isn't ready to commit to concrete plans, because she's not sure what the right thing to do is. She's confused. This is her third wedding, so she doesn't know whether she should go really big and make a huge statement or just do it super toned down."

Britney was previously married to childhood sweetheart Jason Alexander, although their marriage was annulled after just 55 hours in January 2004.

She then wed dancer Kevin Federline in September 2004, and had two sons with him, Sean Preston, six, and five-year-old Jayden James.

She got engaged to Jason last December.