I support banning more money going to the Russian economy. Russians need to stand up and protest, like thousands have done. If millions protest, that will change the direction of the war. So yes, we need to stop sending money to Russia to protest, and let Russians know if they want to be part of the civilized world, they need to stop killing women, little kids and babies in Ukraine. Deliberately attacking civilians is pure evil. Literally, if millions of Russians protest, this war will stop. They can't jail all of them, and the vast majority of protesters are released fast from the police, despite the threats of prison, like WTF is wrong with Russia, you can't protest? like how can u even call yourself a country. If you don't think Russians can rise up against their evil gov't, ask the last czar.
You could also ask the Russian performers to donate money to the Ukrainian defence force, ie, 50% of their fees or something before any remaining money is sent to them, that would maybe show they are on the side of not murdering children.