Nicole Richie to wed this weekend?

WEDDING BELLS: Nicole Richie has sparked speculation she will marry Joel Madden this weekend.
WEDDING BELLS: Nicole Richie has sparked speculation she will marry Joel Madden this weekend.

Nicole Richie has held her bachelorette party, sparking speculation she will marry Joel Madden this weekend.

The two stars have children Harlow, two, and one-year-old Sparrow together, and revealed they were engaged earlier this year. They kept their marriage plans under wraps for several weeks, and have since been reluctant to discuss when they will tie the knot.

However, Richie spent last weekend partying in Mexico with a group of friends. Christina Aguilera, Samantha and Charlotte Ronson and Masha Gordon were all in attendance, and it was initially thought the women were just celebrating Nicole's birthday. The star turned 29 yesterday.

A picture has now surfaced of Aguilera leaving her hotel wearing a robe emblazoned with the words 'Tickle Your Chi Chis With Miss Richie' on the front and 'Nicole's Bachelorette' on the back. The date September 17 2010 was also on the reverse of the gown.

Richie was seen sunbathing in a bikini, and later enjoyed a meal out with pals. She donned a 'bride-to-be' sash for the night, and seemed to have a fun evening.

The star's representative hasn't commented on the reports, but there are rumours Richie and Madden will tie the knot in Malibu this weekend.

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