Leni Klum dazzled on prom night in her mom Heidi's black strapless dress from the '90s

• Heidi Klum's daughter, Leni, wore her strapless dress to prom.
• Leni, 18, shared photos of the occasion on her Instagram account Monday.

Leni Klum wore a strapless dress to prom more than two decades after her mother, Heidi Klum, first donned it on the red carpet.

On Monday, the 18-year-old shared an Instagram post revealing she wore her mother's dress to her high school prom.

"Prom night in mamas dress," she wrote in the caption. She paired the dress with a sparkling handbag and a single necklace. Heidi commented under the post with the heart-eye emoji.

People reported that Heidi first wore the dress in 1998 for a Comic Relief live event.

Representatives for Heidi and Leni Klum did not immediately respond to Insider's request for comment.

Leni is the oldest child of Heidi and Italian businessman Flavio Briatore. She followed in her mother's footsteps and launched a modeling career with CAA Fashion, and is currently a Dior Beauty ambassador, according to her Instagram account. In April 2021, Leni was the cover star of Glamour Germany's 20th-anniversary issue two decades after Heidi was the magazine's first cover model.

"Thank you to everyone who made my first solo cover so special. It's an honor to share this with my mama @heidiklum who was Glamour Germany's first ever cover model," Leni captioned the post.

In July 2021, Heidi told People that she's "very involved" with her daughter's modeling career.

"I said to her, at the end of the day, you have to be happy with yourself," Heidi told the outlet. "And don't do anything you don't want to do. You don't always have to please people. But I'm always with Leni. And she has a very good head on her shoulders."