The 47-year-old actress made a rare public appearance on Saturday night when she stepped out with her whole family -- husband Danny Moder and the couple's three kids, 10-year-old twins Hazel and Phinnaeus and 8-year-old son Henry.
See photos of Julia Roberts and her family:
Julia Roberts family
Julia Roberts makes rare public appearance with her kids
MALIBU, CA - AUGUST 29: Daniel Moder, Julia Roberts, Kelly Slater, Phinnaeus Moder, Henry Daniel Moder and Hazel Moder attend Kelly Slater, John Moore and Friends Celebrate the Launch of Outerknown at Private Residence on August 29, 2015 in Malibu, California. (Photo by Stefanie Keenan/Getty Images for Outerknown)
EXCLUSIVE - Julia Roberts, left, and Daniel Moder in the audience at the 66th Primetime Emmy Awards at the Nokia Theatre L.A. Live on Monday, Aug. 25, 2014, in Los Angeles. (Photo by Frank Micelotta/Invision for the Television Academy/AP Images)
SANTA MONICA, CA - MAY 17: Actress Julia Roberts and Daniel Moder attend Heal The Bay's 'Bring Back The Beach' Annual Awards Presentation & Dinner held at The Jonathan Club on May 17, 2012 in Santa Monica, California. (Photo by Lester Cohen/WireImage)
Julia Roberts, at left, and Danny Moder attend Heal The Bay's Bring Back the Beach Gala, Thursday, May 17, 2012, at The Jonathan Club in Santa Monica, Calif. Heal The Bay's Bring Back the Beach Gala honors Julia Roberts, Danny Moder, Amy Smart, and Matt Hart for their environmental leadership. (AP Photo/Katy Winn)
Julia Roberts arrives at the 21st annual Screen Actors Guild Awards at the Shrine Auditorium on Sunday, Jan. 25, 2015, in Los Angeles. (Photo by Richard Shotwell/Invision/AP)
Julia Roberts arrives at the 21st annual Screen Actors Guild Awards at the Shrine Auditorium on Sunday, Jan. 25, 2015, in Los Angeles. (Photo by Jordan Strauss/Invision/AP)
The family was in Malibu, California to support friend Kelly Slater as he launched Outerknown, the sustainable clothing line that the surfer announced he was creating after leaving longtime sponsor Quiksilver in 2014.
While it's not quite as high-profile as Roberts' appearance on-stage at Taylor Swift's 1989 tour earlier this month, the Oscar winner still looked stunning in a simple black ensemble. Take a look at the Pretty Woman star's style evolution in the video below.