There will, however, be no kind words for either Tony Blair or George Bush.
Alan says: "I've thought a great deal about the response of the people of Liverpool and the country as a whole to the tragedy - and the response of our world 'leaders'.
"These are disturbing times we are living in and people have grown weary, scared and angry because of the ongoing terrorism, conflicts and the fundamentalist views - on ALL sides.
"People see an act of nature like this and they can make some kind of sense of it and understand and react to it, because nature doesn't do this on purpose. It isn't man-made, like wars and terrorism.
"Those of us who marched against the war in Iraq - what good did that do? We couldn't stop it, because the politicians were determined to go to war. We can't stop natural disasters, either, but we can help and provide for people who have suffered as a result of them."
Warming to his impending task - and with the terrifying thoughts of his stage fright put firmly to the back of his mind - Alan says: "Some of us are lucky in that we have got the opportunity to, if you like, put our mouths where our money is.
"This is about giving our time as well as our money. Sometimes, it is easier to give money and say 'Sorry, I haven't got the time.'"
And he adds: "I think the ECHO Tsunami Gala Concert will serve two purposes - it will be a good night out and it will also enable people to contribute and put something back, because the poor of the