Is there a freely availalbe, singer AI like this?

Why?

If it's to spread Russian propaganda you won't get a lot of help here.

It's for personal fun.
Anyway, the language doesn't matter in this case. It's coincidence, that it turns out to be Russian.

If the language doesn't matter I'd avoid Russian.

We get Kremlin users/bots here from time to time, and they usually start off with an innocuous post like yours.

I don't know anything about AI btw, but there are people on here who are quite tech savvy.

For japan you have vocaloid. They took samples from some "ideal" singing voices and made a virtual libraries. It sounds odd in English.

Speak2go ( Mini-speech software ) is a speak and type-it. You also have Balabolka which is similar. They have tons of voice types meant for reading books, but you could speed them up or slow them down . Like Microsoft sound or Apple did this a long time ago. You could possibly find voices for those and then edit them in a sound-editor like Fruity-Loops or Audacity ???

Honestly do not make fun of Eastern Europe. People are shocked and horrified about the whole thing. For many peoples lives it has turned peoples views upside down. Honestly it looks more like Putin is a puppet of some sort because that was not his stance before COVID.

I blame the virus, China, and of course Zionist Israel for wasting our lives.

Hopefully the respective estates will sue the Hell out of these AI developers if we get to that point where AI bots steal (without proper compensation) the vocal and physical likenesses of their respective IP holdings for fun and profit.