"After rollin around on the couch feeling sad with the help of some of my #grigiogirls and a very special someone I managed to dress up and feel better in a beautiful pink sequinned dress generously gifted to me from @oscardelarenta," Gaga captioned one post. "Sonja would want us to celebrate her Birthday. So we are. Dressed in Pink and handing out pink chocolate kisses for #breastcancerawareness."