"Moon Princess"? I only know of checks OST list "The Theme of the Curtain Rising On the Land of Wano".
Title: '''Moon Princess' Resounds! The Land of Wano's Final Act!''
Chapters Covered: 1041
Episode Director: Sho Matsui
Animation Director: Masahiro Shimanuki + Toshio Deguchi
Time: 8:30PM EST
Watch It: www.crunchyroll.com/one-piece