Rocker/actor Jack Black was left red-faced after tripping up onstage during a recent Tenacious D gig in Wisconsin.
The star was performing with bandmate Kyle Gass in the city of Milwaukee last week (ends02Nov08) when he fell face down during his energetic rendition of The Government Totally Sucks.
However, he quickly got back on his feet and assured fans he was unhurt, saying, "I'm OK, I'm OK!"