"Doop-Doop" is the first segment of the seventy-first episode of Star vs. the Forces of Evil. It premiered on April 28, 2019 alongside "Britta's Tacos", and is the first segment of the fifteenth episode in the fourth season.
Star attempts to figure out what to do with her life after she is not responsible for Mewni any longer.
- Marco's baby sister Mariposa (previously believed to be a boy) is born.
- July 19, 2019 (Southeast Asia)