Gnash performs stunts to help get the crowd cheering for the Nashville Predators .
The Nashville predator 's team mascot is a blue saber - toothed cat called Gnash , who joined the team in 1998 .
Gnash performs stunts to help get the crowd cheering for the Nashville   .
The Nashville predator 's team mascot is a blue saber - toothed cat called Gnash , who joined the team in 1998 .