Leni Klum was a dead ringer for her mother Heidi Klum in photos featuring a spectacular little black dress that she posted to her Instagram on Monday.

The 18-year-old model stunned in the off-the-shoulder ensemble, which appeared to be the same as a dress that Heidi wore back in 1998.

'prom night in mamas dress,' Leni captioned her post, while her mother commented with a lovestruck emoji. 

Leni looked as if she was ready to strut down a catwalk in the off-the-shoulder number, which had a lustrous satin finish.

She paired the figure-hugging item with a delicate strand of diamonds around her neck, and she accessorized with a black handbag covered in sparkling studs.

The rising star wore her thick brunette tresses parted down the middle and cascading down her shoulders in thick waves.

Heidi appeared to have worn the same dress when she made an appearance at the filming of Comic Relief 8 in 1998. 

The comedy benefit, which was filmed by HBO, was part of a long-running series of charity shows each hosted by Robin Williams, Whoopi Goldberg and Billy Crystal.

The shows, which featured some of the biggest standup comedians of the day, primarily raised funds to help eradicate homelessness, though some of the shows were charities for the victims of Hurricanes Andrew and Katrina.

Heidi's look that evening featured a gold chain that dangled down to her cleavage, and she contrasted her daughter's future look by opting for her standard straight hair. 

The German-born model has been one of her daughter's biggest boosters as she goes on her own modeling journey. 

Last week, Heidi celebrated her daughter's starring role in a video for a Michael Kors and Ellesse collaboration