Nicole Richie and Joel Madden to tie the knot next month

Nicole Richie and Joel Madden are reportedly set to tie the knot next month. The pair, who raise two young children together, are said to be planning to marry during the first week of December.

“I heard Nicole Richie talking excitedly to Christina Aguilera about her upcoming wedding,” a source told X17. “She said, ‘29 days to go!’”

However, the nuptials will not be the only event the couple — who have been dating for over four years — will host, as they are also believed to be holding a “decoy event” to throw paparazzi off the scent of the real wedding.

Nicole’s close friend Aguilera — who an insider has revealed is “practically living at Nicole’s house” — is also in talks with the pair to perform during their big day.

Meanwhile, it would appear the couple are keen for the newly single singer — who filed for divorce from husband Jordan Bratman three weeks ago — to get out and have fun.

Over the weekend Christina was spotted out with Joel, Nicole and Matthew D. Rutler, a set assistant from her new movie ‘Burlesque’.

“The group was hanging out in a corner of the private club together,” a source said. “Christina and Matt were cuddling on a couch together and left holding hands.”