It was Jack Black ... meets Freddie Mercury ... meets Queen cover band ... meets on-stage mishap ... during an awesomely bizarre live concert in Tennessee this week.
Black was hanging out at the Protomen show at the Exit/In theater in Nashville when the band broke out a little Bohemian Rhapsody.
About 3 minutes into the song, the band called Black on stage to sing back up vocals ... and the crowd went nuts.
As Jack rocked out, he got a little too carried away with the mic stand ... and accidentally pulled it apart. Fortunately another member of the band was there to put it back together again.
at Queen Cover Show
6/28/2012 12:05 PM PDT BY TMZ STAFF
Get TMZ Breaking News alerts to your inbox