as for Come on Eileen, let's see the argument.

I'd say it's not completely atypical, as other white groups devoted to interpretations of classic R&B sounds moved in a pop direction and scored big hits (J. Geils Band) around the same time.

The explicitly Irish too-rye-aye could be argued to be unique, but then I'd cite the similarity between Geils's chorus to Centerfold and the Irish sing-along 'The Rattlin' Bog.'