Heidi Klum is a woman who knows how to keep it together.

During the finale of Heidi Klum's casting show, Germany's "Next Top Model," two topless women streaked the stage.

The women threw their arms in the air, with the words "Heidi Horror Picture Show" written on their chests, NY Daily News reports.

The women were activists of the Femen feminist group. It is unclear what their motivation was for the ambush. According to Us Weekly, the organization supports equal rights and treatment for women. The activists were eventually escorted off the premises by security.

Heidi, 39, was unfazed during the surprise, which was edited out of the live broadcast. She was wearing a beautiful pink Versace gown.

After the incident, Klum said to the crowd: "I have just been seeing boobies in front of me. Too bad it happened at this special moment!"

The model did not bring up the ambush on her Twitter. She did share pictures of her parents and Psy, Robin Thicke, and Bruno Mars, who performed on the show.

"Heidi stopped by my green room and said 'Thank you, Psy," the Korean singer tweeted. "She's so beautiful and nice at the same time!"