California
and rock and roll
The spell you're under?
We'll slowly f* off your virgin soul

The story:

At a local gig we had finished our setlist, when someone called for an encore, so we decided "God of Thunder" is easy, everyone knows it, fair enough.
When the refrain kicked in, I passionately rushed to the singer and screamed, in unison with him, the above mentioned "lyrics". At that moment the whole band suddenly ceased to play.. and laughter roared, from both band and crowd. They still make fun of me, especially as since I'm known as California - who'll f* off your virgin soul - on bass axe.