the crucible for silver
Livingstone for mayor

The real lyrics:
Jesus, Holy One

But I misheard them as:
Jesus, Obi-Wan

The embarrassing moment of revelation:
When I asked my son why they were singing about Obi-Wan

Age when I realized how wrong I had been:
N/A [old, in other words]

Misheard by:

I have managed to convince others that my version is correct: yes
I think my version is better than the original: yes

I am on special medication: yes