Mothers across the US and Australia celebrated Mother's Day on Sunday, including many A-listers. Among the stars to share touching tributes was <a href="https://www.thenationalnews.com/lifestyle/family/gigi-hadid-reveals-daughter-khai-s-arabic-nickname-khaiba-is-lucky-to-have-an-auntie-like-you-1.1161187">Gigi Hadid</a>, who marked her first Mother's Day since giving birth to <a href="https://www.thenationalnews.com/lifestyle/gigi-hadid-shares-new-glimpse-of-baby-daughter-khai-1.1178200">baby Khai</a> in September 2020. The model, who is of Palestinian and Dutch heritage, shared a number of never-before-seen pictures with her eight-month-old daughter, whom she called her "best friend". "The rumours are true: my best friend, purpose, muse, greatest pride and joy!" she captioned the series of images. "I feel so lucky and inspired being your mama, my Khai! An old soul full of sunshine, you light up everyone's days! Thank you, thank you, thank you." In another post, she paid tribute to her mother, Yolanda, as well as her grandmother. "Life! Miracles! Mothers!" she wrote. "Cheers to our angels above and to you Yolanda Hadid, the most inspiring mama and best Oma we could ever ask for! We love you more than words. Eternally grateful." Here are some other celebrity Mother’s Day tributes: The Dubai beauty mogul celebrated US Mother’s Day, sharing an image of her Palm Jumeirah home filled to the brim with red and pink heart balloons and flowers. “Happy Mother’s Day to all you beautiful mamas,” she wrote. The songstress shared a rare snap with her 11-year-old twins, Moroccan and Monroe, to mark Mother’s Day. In a holiday snap taken at the beach, the twins each kiss their mother on the cheek. “All things are possible ... Happy Mother's Day!” she captioned the snap. The beauty mogul celebrated an extra-special Mother's Day on Sunday, as it happened to fall on the same day as her youngest son Psalm's birthday. As well as sharing a post for him turning 2, she shared an image paying tribute to her mother, Kris Jenner. "Happy Mother's Day Mom! There is no one on this planet that knows me the way you do or as long as you have! Thank you so much for giving us the best party planning skills, cooking skills and most importantly teaching us how to organise and run a household! Thank you for waking us up through the intercom every day at 6.55am even on the weekends to just be up for no reason!" she wrote. "Seriously though, you manage to raise six kids and make it look so easy … I love u mum! More than you will ever know!" Joe Jonas paid tribute to his wife, Sophie Turner, as she celebrated her first Mother’s Day since giving birth to their daughter, Willa, in July 2020. Sharing a photograph of the heavily pregnant actress cradling her bump, as well as a picture of himself with his own mother, he wrote: “Happy Mother’s Day to all the amazing mothers out there and to these two Mums.” Katy Perry paid tribute to her mother on her Instagram page on Sunday, while her fiance, Orlando Bloom, shared a post praising the singer and all the other amazing mothers. The pair welcomed a daughter, Daisy, in August. “Got myself a real catch,” the actor wrote, in a picture showing the star dressed as a mermaid Photoshopped into his hands. “Sending love and respect to all the amazing people who have shaped our lives, supported us and loved us unconditionally. Happy Mother’s Day.” The <a href="https://www.thenationalnews.com/arts-culture/television/vax-live-meghan-markle-highlights-women-affected-by-the-pandemic-in-virtual-speech-1.1219419">Duchess of Sussex</a>, who is mother to two-year-old Archie and will welcome a daughter in the summer with husband Prince Harry, marked Mother's Day by making a donation to support homeless mothers in California. Charity Harvest Homes shared the news on its Instagram page, revealing that the organisation had received a donation from Archewell, the royal couple's non-profit foundation. "Happy Mother's Day today and every day to all mums out there. Thank you for your constant love, your tireless energy, and for showing up and being just 'enough'. We see you and we love you," reads the Harvest Home caption. "Today, we are thrilled to have the support of Archewell Foundation, the Duke and Duchess of Sussex, and Procter & Gamble, who are donating diapers, cleaning supplies, and other essential items to ensure that the mums and babies at Harvest Home are celebrated all throughout the year."