Surprisingly, I haven't found anything impressive from him beside this single performance. His earlier works are quite silly, maybe he's changing the style?
P.S. Your link doesn't work ("Service Unavailable"). This direct link to mp3 download works for me. The interview starts with this quite hilarious performance, where he sings a sceptic's challenge.
Eek! It worked when posted (I checked the link). Hopefully it'll be back.
[Edit 16 March - it's back!]
Excellent link -- thank you.
This post inspired me to do a quick test run on whether LW supports embedded video in posts, and the answer appears to be no.
Of course, some might claim this is a feature, not a bug.
ETA: On my mac, it appears embedding works in Safari, but not in Firefox. Not sure about other browsers/OSes. I can post my test page publicly if that would be helpful.
I'm sure many of you have already seen this performance. Tim Minchin's beat poem "Storm" is about the sceptical, secular understanding of the world, stupidity of quackery and supernatural, weight of dishonesty, and joy in the merely real. Contains strong language.