He might have played the most famous boxer in movie history, but Rocky star Sylvester Stallone found his latest opponent too tough to handle.
Singer Demi Lovato showed she has a mean right hook as she knocked down the veteran Hollywood star during a sparring session at an LA gym.
"Just knocking out Rocky (@officialslystallone) easy day at @unbreakableperformance," the 24-year-old posted on Instagram.
In the video, Sylvester, 70, can be heard joking, "I slipped! I swear, it was an accident!"
Moments later, the duo showed there were no hard feelings by embracing in a hug.
Sylvester shared the same clip to his own Instagram, writing: "Rocky gets knocked out by his long-lost daughter, Roxana ... Starring Demi Lovato @ddlovato. The Unthinkable At Unbreakable."