The link posted by Mr. Happy on 23 Aug 06 - 07:57 PM doesn't bring up anything relevant. I'd call that a dead link, even though it does bring up a generic page for the Telegraph.

So I searched at the Telegraph website for "The Sun Has Got His Hat On" and found these, from May, 2014:

May 10, 2014: Broadcaster forced to quit by BBC after accidentally playing a song with the N-word

May 11, 2014: Boris Johnson: BBC's treatment of veteran broadcaster has been utterly disgraceful

May 12, 2014: N-word radio show was pre-recorded but 'no one at BBC listened to it'

May 14, 2014: David Lowe: I thought, 'The Sun Has Got His Hat On'. Now that's a nice, safe choice


Wikipedia has an article about the song.