You likely saw it as part of the "deepfake" meme trend where people's faces (or characters from other games) are edited to sing along to the track. The "Mother F a" Version:
If you are looking for the full version or want to know more about the meme, here is a quick breakdown: What is "Baka Mitai"? : It is a melancholic ballad originally featured in Yakuza: Like a Dragon , and other titles in the franchise. The Lyrics
Be cautious when searching for terms like "full version hot." Many unofficial websites may use these titles as "clickbait" to host malware. Stick to trusted platforms like for game downloads.