Slipknot frontman Corey Taylor gave fans a real fright at a gig in Texas on Tuesday night when he passed out during the band's last song.
The band were performing in Dallas, Texas as part of the Rockstar Energy Drink Mayhem Festival tour when Taylor hit the floor whilst performing.
You can see footage of the dramatic moment below, with members of Slipknot's crew picking Taylor up and carrying him off the stage.
Posting on Twitter the day after, Taylor assured fans that he was OK and had merely suffered a bad case of heatstroke: "Hello everyone. I'm fine - just overheated in Dallas last night. Ready and waiting for Houston! Thank you to everyone for your concerns!"
Check out the Slipknot footage below: