Ok -- I might be stupid.
That being made clear, does it seem to you that Seryoga's {O} sounds are being nasalized?
For instance, the word "champion," coming at around 1:06, as well as the word immediately following.
Here's the clip:
http://youtube.com/watch?v=42bDzr4vCOc
There are few other instances throughout.
Do you agree with my assessment -- do you think he's saying the vowels rather nasally/atypically?
If so -- is this stylistic? Or just a reflection of his Belorusian roots...?