Bella Hadid, The Weeknd
The Weeknd and Bella Hadid attend the Met Gala at the Metropolitan Museum of Art on May 2, 2016, in New York City. Getty Images/Mike Coppola

Bella Hadid and The Weeknd's relationship is going strong. The couple was recently spotted on their way to the singer's 29th birthday celebration, which seemed to have had a camouflage theme.

On Friday, Hadid, 22, braved the freezing New York City temperatures in a tiny camo crop top and army green mini skirt that showed off her abs and cleavage, as shown in photos released by Daily Mail. She topped the sexy outfit with an oversized lined jacket and paired it with Prada knee-high fishnet stockings and tan-colored heeled pointed-toe boots.

Hadid accessorized the look with a diamond necklace, bracelet, ring and hoop earrings. She kept her wavy locks away from her face by pinning them to the sides and sported glamorous makeup for the occasion.

The Weeknd, whose real name is Abel Tesfaye, also kept true to the camo theme, wearing a camouflage jacket and pants on top of a black shirt for his birthday celebration.

Before heading the party held at Tao, Hadid shared several photos of their outfits for the night on her Instagram. One photo showed The Weeknd standing up, while Hadid crouched next to him, with an arm around his leg. In her caption, she called The Weeknd's birthday her "favorite day of the year."

Another Instagram photo showed her cuddling close to The Weeknd as he flashes his teeth at the camera. Her third snap featured her standing up this time, while the "birthday baby" poses in front of her. Check out Hadid's Instagram posts below!

Hadid and The Weeknd rekindled their romance in spring last year. They initially dated from 2015 to 2016 before breaking up. The Weeknd then jumped into a relationship with Selena Gomez for a year and a half before getting back with Gigi Hadid's younger sister.

The two seem to be more in love than ever, with some sources claiming that a proposal is on the horizon.

Their latest sightings comes a few days after The Weeknd's ex, Gomez, was photographed flying solo in Orange County. The "Hands To Myself" singer recently finished her two-month stint in rehab for anxiety and depression and has been teasing on Instagram that she has many projects lined up for this year.