Simplify the following text for a Grade 11 native English-speaking person.
Original: On September 30 , 2008 the band 's record label Roadrunner Records released a 15 second teaser video on YouTube which featured vocalist Corey Taylor in what appears to be a grave in torrential rain .
Simplified: On September 30 , 2008 , the band 's record label Roadrunner Records released a 15 second teaser video on YouTube which showed vocalist Corey Taylor in what looks like to be a grave in heavy rainfall .