London, Jan 4 - Singing couple Beyonce Knowles and Jay-Z have offered to organise British pop star Robbie Williams' wedding to girlfriend Ayda Field.

Williams reportedly proposed to the American actress over the New Year holiday period and Jay-Z is already volunteering to plan the lavish ceremony, with the help of his superstar wife, reports contactmusic.com.

'I would be happy to help Robbie organise his wedding. I am sure he will make it an extravagant party. I had my 40th last month in the Dominican Republic. That would be a great place for Robbie's wedding. It's the most stunning place on earth. It has everything - beautiful beaches, scenery, golf courses - and is easy to fly guests to,' said Jay-Z.

'The entertainment at my party was all hot and if Robbie wants my help he should come over for dinner and Bey (Beyonce) and I can help him out. She is great at organising parties, she loves it,' he added.

The hip-hop star insists he'll even take the stage to perform for the newlyweds.

'I don't know what Robbie's entertainment plans are but, as a wedding present, I would get up after the speeches and do a little set,' he said.