Jake and the Balrog both have whips, think about it....

 

The Balrog uses its whip at the last moment to seize Gandalf....

https://youtu.be/tPRG-l-YR94

But Gandalf has Narya, the Elven ring of power, plus the light from his staff plus Glamdring he can shave with. 

https://youtu.be/Y2fwe0rnHak

So that's probably why the Balrog would have preferred listening to Fear Factory, Replica", over Gandalf.... Think about it...

https://youtu.be/7RJsRQOneMY