Cheryl and Liam Payne have split up after a two-and-a-half-year relationship.
The singers announced they were "going our separate ways" in nearly-identical posts to their 40 million Twitter followers.
The former Girls Aloud star, who turned 35 on Saturday, and One Direction member, 24, have a one-year-old son, Bear.
The parents said separating had been "a tough decision for us to make".
The statement added: "We still have so much love for each other as a family. Bear is our world and we ask that you respect his privacy as we navigate our way through this together."