Lordi simply has very similar registration and birth dates.
He also has May 24th in his registration.
Added 30 seconds later
In general, a concern is one of the types of financial and industrial companies; I think everyone has figured that out.
http://ru.wikipedia.org/wiki/Концерн
http://en.wikipedia.org/wiki/Concern_(business
The point is that we are using the German company Volkswagen as an example of a concern. It's very easy to find. It is presented as an example in both articles above, and I also found Volkswagen by searching for various lists of concerns on Google.
So, let's go to the Wikipedia page about this company.
http://ru.wikipedia.org/wiki/Фольксваген
Let's look at the "chairman" column on the right. We don't find a link to the page about this person, but it exists in the English Wikipedia.
http://en.wikipedia.org/wiki/Martin_Winterkorn
Let's look at the date of birth and compare it with Lordi's registration date.
Ta-da.
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The only thing that bothers me is that coming up with such a clue is quite tedious.