By Lara Walsh
Updated Aug 16, 2016 @ 8:45 am
NEW YORK, NY - SEPTEMBER 29: Model Iman at the Frederique's Choice US Launch Party at Gallow Green at The McKittrick Hotel on September 29, 2015 in New York City. (Photo by Jamie McCarthy/Getty Images for Frederique's Choice)
Credit: Jamie McCarthy/Getty

They sure do grow up fast! Iman and the late David Bowie's daughter Alexandria "Lexi" Zahra Jones rang in her sweet sixteen on Monday, and her proud mom took to Instagram to share a rare photo of her little girl in honor of the milestone birthday.

"Happy sweet 16th birthday to my baby girl Lexi!" the supermodel captioned the black-and-white shot of the teen. "Stay sweet 'Classy with a hint of sassy' #SelfPortrait #LexiLove."

The selfie shows the stunning teen takes after her model mother with Lexi pouting for the camera dressed in a black turtleneck sweater with her dark locks pulled up into a chic topknot and a winged cat eye.

The young teen's big birthday comes on a bittersweet note following her father David Bowie's passing in January.

A sweet birthday message to Lexi was also posted on the legendary singer's Instagram account. The post shows Bowie and Iman holding their newborn baby daughter as well as an image of Dad when he was 16 years old.

"Happy sixteenth birthday to Lexi. 'Fill your heart with love today, Don't play the game of time...'" the caption reads. "Lexi, as she's known to her friends and family, is pictured here with her parents as a newborn baby back in 2000. The main pic is of her father in 1963, an ambitious 16-year-old himself with a particularly bright future ahead of him."