STORY: Sviatoslav Vakarchuk accompanied himself on guitar as he sat in protective white clothes in front of a huge bank of controls inside the notorious facility.
In April 1986 the plant's fourth reactor exploded during a botched safety test, sending clouds of radiation billowing across much of Europe.
The plant, which is still radioactive, lies about 100 km (62 miles) from Kyiv. In February, invading Russian forces captured it but it was later retaken by Ukraine.
Speaking outside the venue after his performance, Vakarchuk praised the current workforce for preventing another disaster.
But he said that there was another tragedy taking place in Ukraine in the southern city of Mariupol.
Russian forces have been bombarding the Azovstal steelworks where the last bastion of hundreds of Ukrainian defenders are holed up. The city is almost completely controlled by Russia after more than two months of siege.