It's a holly, nothing but a holly...

The story:

Just this morning, I heard the song on the radio, and decided to find out the name of the song. But the only lyric I could pick out from the rest of the song was "It's a holly", which turned up absolutely nothing. So I waited a bit and heard another lyric, and looked that one up. I always liked my version; there just aren't enough songs about Brits singing about vacation.