Ashlee Simpson [1] gave birth less than a month ago, but she's already out and about with her family. On Thursday, the 30-year-old stepped out to celebrate husband Evan Ross's 30th birthday at Matsuhisa in Beverly Hills. Ashlee flashed a sweet smile while making her way to the sushi restaurant and looked flawless in an all-black ensemble paired with a bold red lip.

While Ashlee's been lying low since the birth of her baby girl, Jagger Snow Ross, Evan has been hamming it up on Instagram [2]. Most recently, he shared a series of sweet snaps from the couple's wedding [3], almost a year later. The cute snapshots show everything from their romantic kiss to the enchanting atmosphere at their reception. On July 30, when Jagger was born, Evan revealed the baby's name [4] in a sweet message. Keep scrolling to see more snaps from Ashlee's latest outing.