Ashlee Simpson And Evan Ross Getting Ready To Marry Over Labor Day Weekend In Greenwich, Connecticut

Here comes the bride!

Ashlee Simpson is set to take her second walk down the aisle with Evan Ross, the 25-year-old son of superstar singer Diana Ross.

RadarOnline can reveal that workers are busy setting up a large white tent and readying Ross’ lavish Greenwich, Connecticut, estate for the big day.

Despite all the preparations, Simpson, 29, has insisted that the time leading to her Labor Day shindig be as laid-back as possible. “Ashlee wants to take the time to enjoy the wedding process and every minute before it comes,” a source recently told Radar.

Now that the saved date is finally here, Simpson, who was previously married to Fall Out Boy rocker Pete Wentz, has just one wish: “All she wants is Diana to sing at the wedding,” revealed the source.

The wedding comes on the heels of big sister Jessica Simpson’s ceremony to tie the knot with Eric Johnson. The couple married on July 5 at Montecito’s SanYsidro Ranch in front of 250 friends and family.