Saturday marks Gigi Hadid's 21st birthday, and the stunning supermodel kicked things off by celebrating with her equally gorgeous family on Friday. Gigi took to Instagram to share photos of her low-key lunch with her younger siblings, Bella and Anwar Hadid, and half-sisters Marielle and Alana Hadid. "Birthday week begins," she wrote alongside a group shot. The model's boyfriend, Zayn Malik, isn't pictured, but judging by their recent Vogue photo shoot, which included a steamy makeout session, we're sure he has something very romantic planned.
Gigi's parents, Yolanda and Mohamed Hadid, also gave their daughter sweet shout-outs on social media. Yolanda called Gigi her "sweet angel," while Mohamed described her as "charming and bubbly, innocent and friendly." Keep reading to see more photos from her big weekend, and then check out her cutest BFF moments with Kendall Jenner.