The first time I played the piano for an audience, was at the Pianodriedaagse at De Doelen in Rotterdam. The event was called the “drie minuten festival”, where contestants are allowed to perform for a maximum of three minutes, in front of an audience and a jury, at a very popular (classical) concert location.

^ That’s the full first song you’ve only heard a small part of, in the other video.
I played Les Sylphes by Burgmüller and Tarantella by Pieczonka.