Pet Shop Boys singer Neil Tennant has joined the increasing band of Live Earth critics.
The veteran pop star says performers at Al Gore's series of �climate change awareness� concerts next month � including Madonna and James Blunt - will only succeed in appearing �arrogant�.
He says, �The Princess Diana concert is fair enough, but I feel more uneasy about the Al Gore thing.
"I've always been against the idea of rock stars lecturing people as if they know something the rest of us don't - it looks arrogant.
"It's not as if they have a private source of information. To state the obvious as if you are the only person that knows it is intellectually weak.�
Tennant has also put the boot into the titular head of arrogant, campaigning rock stars � yes, Bono.
�Bono uses his celebrity, but in doing so he increases his celebrity. I'm never even totally convinced that the rest of U2 feel comfortable with that," Neil sagely notes.

























