Jessica Simpson stepped out with her beautiful family in tow on the red carpet on Saturday.

The singer-turned-fashion designer attended an event with her fiancé Eric Johnson and their two children, daughter Maxwell and son Ace Knute at Dillard's in Dallas, Texas to promote her Jessica Simpson Collection.

The family of four was joined by her younger sister Ashlee Simpson and her new boyfriend Evan Ross, the son of iconic singer Diana Ross.

View the photos of Jessica Simpson with her family here.

Jessica Simpson's Baby Maxwell PHOTO, Daughter Is 'Crazy Beautiful,' She Says

Jessica and Johnson have been engaged since 2010. They welcomed their first child, Mazwell in May 2012.

In November 2012, Simpson announced she was pregnant again just seven months after she gave birth to Maxwell. The couple welcomed their second child, son Ace, on June 30. He was delivered via C-section at a Los Angeles hospital.

The Fashion Star mentor announced she was pregnant with her second child via Twitter on Christmas Day. Simpson reportedly "screamed with joy" when she learned she was having a boy.

"It's Jessica's dream come true, she prayed she was having a boy," a close family source told Radar Online at the time.

Us Weekly reported earlier this month that Jessica and Johnson have been secretly planning their upcoming summer 2014 wedding. They scouted locations on the Italian island of Capri, where they met and fell in love in 2010.

A friend of Jessica's told the magazine that August Gardens in Capri is her ideal location at the moment. She considered it "perfect" said the source, adding, "she seemed very excited about it."

View the gallery above of recent family photos Jessica Simpson shared on Twitter.