Let's not forget the incredibly successful singer and songwriter Gene Pitney who had two dozen hit records.
youtube.com/watch?feature=player_embedded&v=vDN4L7cAQf0
The legendary Peter Cetera of the group Chicago,
Pete Cetera also grew up on the south side of Chicago but he grew up on the nice side of the tracks, unlike me.
By the way Bon Jovi guitarist Richie Sambora is half Polish, half Italian in ancestry. I run into that combo frequently.
Now, how could anyone leave out Bobby Vinton? This was his 5th number 1 hit record.
youtube.com/watch?feature=player_embedded&v=iGzYWrn-XGM