The UceLi Quartet performed to an audience of potted plants on June 22, 2020 (Credit: liceubarcelona.ca)

Spain's three-month-long lockdown order imposed to curb the spread of the COVID-19 pandemic was finally lifted on June 22, 2020. To celebrate the joyous occasion, the Gran Teatre del Liceu in Barcelona, Spain — one of Europe's oldest and most famous opera houses— staged its first live performance since mid-March. While every seat was occupied, there was not a human to be found. Instead, the sold-out audience comprised 2,292 potted plants carefully selected from local nurseries.