10/09/2015 03:12 EDT | Updated 10/09/2015 03:59 EDT

Gigi Hadid And Joe Jonas Make Their Red Carpet Debut

On an emotional night for the Hadid family, Gigi Hadid looked like a vision standing next to her boyfriend, Joe Jonas, on their very first red carpet together.

The couple, who were first spotted getting cozy in June, attended the Global Lyme Alliance Inaugural Gala at Cipriani 42nd Street in New York City on Thursday evening to support Hadid's mom, Yolanda Foster, who is battling Lyme disease. The 20-year-old model gave an emotional speech on how proud she is of her mother's perseverance and presented her with the "Power of One" award. It was later revealed that Hadid's 18-year-old sister, model of the moment, Bella Hadid, and little brother, Anwar, have also been diagnosed with the illness.

gigi hadid joe jonas

Gigi wore an off-white strapless Tommy Hilfiger dress that gathered beautifully in the waistline. The runway model wore her hair in a beachy ponytail, opting to keep her makeup bronzed and simple. She also ditched the heels for the night and sported a cute pair of nude flats.

gigi joe

On her arm, boyfriend Joe donned a navy blue suit and white undershirt. He topped off the look with a pair of shiny black loafers.

Absolutely adorable.

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