Take Three Is A Magic Number and look at some of the lyrics: they're so Catholic.
Three is a magic number,
Yes it is, it's a magic number.
Somewhere in the ancient, mystic trinity
You get three as a magic number.
The past and the present and the future.
Faith and Hope and Charity,
The heart and the brain and the body
Give you three as a magic number.
A man and a woman had a little baby,
Yes, they did.
They had three in the family,
And that's a magic number.