Jessica Simpson and Eric Johnson show off their daughter Maxwell and son Ace at the Nordstrom fashion show in Sept. 20. Credit: Jamie McCarthy/Getty Images for Jessica Simpson Collection

Simpson's scene-stealers! Jessica Simpson spent Saturday, Sept. 20 celebrating her new clothing line for Nordstrom with a fashion show at The Grove in Los Angeles, but her two beautiful children, Maxwell, 2, and Ace, 14 months, commanded all the attention. 

The designer's two tots came out in support of their famed mom, 34, with dad Eric Johnson by their side. They walked the red carpet, goofing off for the cameras with little Ace being lifted up on his dad's shoulders and Maxwell standing front and center in a dress designed by her mom and Ash sneakers. 

Simpson's blonde mini-me Maxwell was also carried out onto the runway with her mom (both wearing Jessica Simpson Collection) and grandmother Tina Simpson

Though she was enjoying seeing her fall collection on display, Simpson has plenty to celebrate this year. She married longtime fiance Johnson in July, and her children have hit some major milestones, serving as the ring bearer and flower girl in their aunt Ashlee Simpson's wedding earlier this month. 

"This stud is 14 months!!" she captioned an Instagram picture of little Ace last week. "Maxi was this age when this handsome man said hello to the world! Omg!"