Priyanka, who is married to pop singer Nick Jonas, on Friday posted a black and white photograph of Turner along with her singer-beau Joe Jonas.
The "Isn't It Romantic" actress described Turner as the "most beautiful" and a "fun" person as she captioned the image: "Happy birthday Sophie you are loved! I can't wait to see you as a bride. You will be stunning! Have a brilliant year love. 'J sisters forever'. Joe Jonas you are the most thoughtful! Last night was epic."
Joe proposed to Turner in 2017. The two will reportedly tie the knot this summer in a romantic French setting.
Priyanka and Nick got married last year in November at the Umaid Bhawan Palace in Rajasthan. Turner and Joe too were seen attending the wedding and the receptions held in the country.