![](https://ichef.bbci.co.uk/news/1024/branded_news/342E/production/_123485331_djkarolova.jpg)
On Facebook, Svyatoslav Vakarchuk, frontman of the Ukrainian rock band Okean Elzy, is posting hourly updates about the conflict. In one video, he’s visiting wounded soldiers in hospital; in another he’s in a bullet-proof vest, making a speech on the streets of Kharkiv; in another, he’s delivering food and fuel to Kiyv in his car.