UNDATED (AP) — Paul McCartney is Paul McCartney because his father didn’t want people to confuse them. McCartney’s given name is James Paul McCartney, and his father has the same name. A fan wrote to McCartney’s website asking why he didn’t go by James. McCartney says he was told that if letters came to the house for James McCartney, they wouldn’t know which one they were for. McCartney says his younger brother is Peter Michael McCartney and always went by Michael, which makes no sense because there was no other Peter in the house. McCartney says he figures it’s an Irish thing.