And, just in case anyone wondered - 60,000 Estonians is just shy of 5% of the population.
(Assuming that Estonian-speaking Estonians are over-represented at this event, and given that almost a quarter of Estonia's population are ethnic Russians, this event probably gathers some 6-7% of the Estonian-speaking population!)
The next iteration will take in July 2025 (https://2023.laulupidu.ee/en/registraton-to-song-celebration...)
See https://www.youtube.com/watch?v=XTdOiCa0-4o for a beautiful excerpt of the 2019 event.