"You are a mirror and teacher of all things fair and equal", her mother, Yolanda, wrote on Instagram.
Younger brother Anwar (who's also a model because really good genes run in this family) posted his own tribute to the 21-year-old, telling Bella "I love you so much my sister".
The brunette beauty left little to the imagination as she wore a skintight satin dress for a party with her sister Gigi and her mom Yolanda.
Tim Cahill double ends Syria's World Cup dream
There was huge drama in the dying seconds, when Soma juddered the right post with a vicious free kick. But Australia survived to stay on track for its fourth straight World Cup.
Stepping out of Bella's New York City apartment, Gigi was spotted wearing a baby-blue Pamella Roland corset with a set of high-waist slacks.
Gigi is now adding beauty maven to her resume, revealing her latest venture with the American company by uploading a photo of herself leaning over a counter covered in cosmetics to her Instagram page on Sunday.
'HAPPY 21st BIRTHDAY MY ANGELIC SISTER @BELLAHADID!
Microsoft, GE extend partnership with wind turbine-plus-storage project in Ireland
The wind turbines will have an integrated battery and Microsoft and GE will team up to provide data on energy storage. This will better enable intermittent clean power sources like wind energy to be added to the Irish grid.
Bella took note of that shoutout, too. "You have a power to empathize with everyone [and] love always, and you make so many people happy in doing so!" Snapped in NY with friends on her birthday, Bella was wearing a white cotton baby doll dress by Australian label, Daisy. In honor of the milestone birthday, Hadid shared a video of herself sporting different looks (each one sexier than the last).
Nokia to focus on digital health, cut jobs in VR digital media
Nokia said that Nokia Technologies will sharpen its focus on digital health and accelerate the company's growth in that market. As part of that process, Nokia has invited employee representatives from Finland to appear at "cooperation negotiations".