I do not think it is true that classic Greek laika (say 1960-1975) needed "hooks", meaning "catchy phrases" that would stick in people's minds.
And I don't think it is true that classic Greek laika even needed a chorus (lines sung more than once between verses.)
So I certainly don't think it is true that classic Greek laika needed "choruses with hooks" to be successful.
Am I right? Or wrong?
And if I am right, when did Greek music start to change so that it needed "chorus with hook" concept? Was it pressure from US and Euro pop music changing Greek taste?