Irwin and her mom turned heads in complementary black ensembles. The teenager sported a sleeveless dress with peep-toe pumps, while Terri wore a blazer over a dress with boots.
The Dancing with the Stars Season 21 winner is the daughter of Terri and late Crocodile Hunter Steve Irwin, who died at age 44 in 2006. Terri and Steve are also parents to 12-year-old son Robert.
"Dad was the strongest person I've ever known," Irwin told People magazine in October. "And when the strongest person is taken away, you kind of go, 'Oh my goodness. What are we going to do?'"
"As a family we've gotten so close. The three of us, no matter where we are in the world, we'll always stick together," she shared. "We can count on each other on the good days and bad days ... I'm a strong individual but I know I can always just lean on them."
Terri and Robert temporarily moved to Los Angeles to support Irwin while she competed on Dancing with the Stars in 2015. The teenager returned to the ABC reality competition Monday to guest co-host with Tom Bergeron.
"Missed my other family @dancingabc! Tonight was spectacular and @tombergeron love you so much, it was great to be back in the ballroom," she wrote of her appearance.
Irwin reunited with her boyfriend, American wakeboarder Chandler Powell, during her stay in Los Angeles. The conservationist will return to the city in November for the Steve Irwin Gala Dinner, a fundraiser in her father's honor.