Robert Plant simulated snoring when he was asked on Monday whether Led Zeppelin would reunite for a world tour in the near future.

Plant was speaking to journalists abut his current project with singer Alison Krauss when the subject of his former band was raised.

"Zzzzzzzzzzz," Plant said at a press conference in Toronto, before pretending to fall asleep.

Calls for Led Zeppelin to announce further shows have been constant since the band played a one-off reunion show at the O2 Arena in London last December.

The possibility of another show this year now looks unlikely, however, after Plant and Krauss announced that their tour would continue into October.

The Led Zeppelin singer also hinted at a further extension, telling the Canadian Press that he would like to “extend it as far as we can, if you know what I mean."

(by Jason Gregory)