Up to 600 artificial LED candles are lighting up a stage in the Ukrainian capital Kyiv so the show can go on.
The country is experiencing constant power shortages and blackouts as a result of increased Russian attacks on its energy grid so Kyiv residents escape to the theatre to hear live music in a calm environment.
"We thought it was a good idea to save energy," concert administrator Irina Mikoaenko said.
"Calm is very important now", musician Yuriy Solukha added.
"People have a lot of worries about the war, about their loved ones."
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