Evan Ross enjoyed a family trip with wife Ashlee Simpson and their daughter over the weekend.
"#familytrip #lakeAustin loved every minute of it!!!!!so much love," he captioned the picture on Instagram.
"Me and my baby girl watching MOMMY. You are everything MOM. Baby girl loving her Grand Mommy," the star wrote.
Ross and Simpson, the younger sister of singer and designer Jessica Simpson, married in August 2014.
Simpson is also mom to 8-year-old son Knox with her ex-husband, Fall Out Boy bassist Pete Wentz.
"Knox is such a good older brother," the singer told E! News in October 2015 after Jagger's birth. "He's always saying how beautiful she is and wanting to hold her."
"He's like a professional big brother, and he's got it down," she told AOL the same month. "He can calm her down and tell her it's okay, entertain her and dance with her."
Ross is known for playing Charlie Selby on "90210," Messalla in "The Hunger Games" movies and Diver Hawkes on "Wicked City."