Ashlee Simpson Wedding: Bride-to-be to Wed in Less than Four Weeks; Gym Workout Prepared The Singer for The Big Day!

Ashlee Simpson wedding with fiancé, Evan Ross is rumoured to have been scheduled on Labor Day, The Daily Mail reported .

With a little over three weeks left until the big day, Ashlee sure did not waste time getting fit in preparation for the big day. The reality star-singer was seen coming in Studio City, CA, wearing gym clothes.

Jessica's younger sister wore a cropped black yoga leggings, a black tank to, a black Nike trainers, a black baseball cap, black sunglasses and carrying a black handbag.

Simpson donned on an orange-red manicure that matched her hat's design.

The star sported a casual look, without any makeup on.

She cooled with a coconut water to quench her thirst.

Evan and Ashlee announced their engagement last January, as Ashlee tweeted:

'My baby love and I are ENGAGED!!! Hallelujah Hawaii!!!'

The Ashlee Simpson wedding with Ross capped off with an engagement ring photo accompanying Simpson's tweet.

Diana Ross, the groom's mother, will reportedly officiate the wedding at the Ross family's Greenwich, Connecticut estate.

It will be Evan's first marriage. On the other hand, Simpson will be married for the second time. She was previously married to Fall Out Boy member, Pete Wentz. She and Wentz have a five-year old son named Bronx.

The Ashlee Simpson wedding will surely be a not-to-be missed star-studded event.