A source tells X17Online.com, "I heard Nicole Richie talking excitedly to Christina Aguilera about her upcoming wedding. She said, '29 days to go!'"

The website reports the couple is planning an early December wedding and a decoy party in an attempt to bamboozle the paparazzi.

Nicole Richie and Joel Madden have been dating for over four years and have two children together - Harlow, two, and Sparrow, one.