MISSISSAUGA, Ont. - She's tackled the worlds of song, stage and screen and is now balancing her new marriage with impending motherhood but Ashlee Simpson has designs on taking on yet another job.

The pop star, who appeared on the TV series "7th Heaven" and in the London stage production of "Chicago," said she'd like to create her own clothing line.

"Fashion is always something that's fun for me," Simpson said in an interview Saturday.

"In the near future, I'll be designing my own clothes as well, so I'm looking forward to that."

Simpson said she has her own distinctive style but admits to being a fan of Deborah Harry's look.

"She was definitely sexy but wasn't trying to be and I loved that," Simpson said of the Blondie singer.

The 23-year-old has already entered the design game, recently launching a collection of T-shirts for U.S. retailer Wet Seal.

And while she enjoys knitting, Simpson said there aren't any immediate plans to craft any baby booties for her new bundle of joy when he or she arrives in late fall.

"I really like to do it (knitting) but I always kind of have a hole in it," she said, laughing.

"I don't have anything made yet for my baby but maybe I will."

In the meantime, Simpson still has fashion on the front burner as she takes on the role as the face of a Canadian clothing line.

Simpson is the spokeswoman for the relaunched Request line, an affordable apparel brand comprising casual and dressy separates.

She made an in-store appearance Saturday before throngs of screaming fans at a Zellers location west of Toronto, fielding questions onstage from "Entertainment Tonight Canada" host Rick Campanelli and the audience, who eagerly snapped photos of Simpson.

Prior to her appearance, Simpson looked relaxed with her red locks swept into a ponytail and baby bump visible under a loose-fitting black shirt from the Request line that she paired with a bright-orange scarf with white print, leggings and towering heels.

Simpson, who married Fall Out Boy bassist Pete Wentz in May, said she and her husband have being doing lots of reading up in preparation for their new arrival and she "can't wait" to be a mother.

"It's going to be very exciting," said Simpson, who added her big sister, Jessica, is also looking forward to being an aunt.

"I think your mother instincts really kick in the day you find out that you're pregnant and for me, it's been a blast preparing for it, getting the nursery ready and all that. So, we're both really looking forward to it."

Being a high-profile Hollywood couple can have its downsides, like the ever-present paparazzi snapping away everytime the pair appears in public.

Simpson admits it can be tough but tries to take things in stride.

"That's definitely the frustrating part about it but our home is very private and what goes on in our home is very private," she said.

"People just really see pictures and make assumptions of what we're doing."

Simpson shot down news reports that the couple was planning to move to New York City or Wentz's hometown Chicago to get away from the scrutiny, saying they plan to stay put -- for now.

"I would definitely look into moving," she said.

"We haven't decided where we're going to raise our kid but for the first year we'll stay in California."

As for music, Simpson said she will definitely get back to working when she feels ready but right now is focused on motherhood.

And while she did a duet with her sister for Jessica's holiday album, Simpson said don't expect to see her and Wentz collaborate on a track anytime soon.

"Pete and I keep our music separate," she said.

"We collaborate on other things -- like making a baby," she added, laughing.