Both a song and a dance called the same thing.

"The scene was rockin’, all were digging the sounds
Igor on chains, backed by his baying hounds
The coffin-bangers were about to arrive
With their vocal group, ‘The Crypt-Kicker Five’

They played the mash, they played the monster mash
The monster mash, it was a graveyard smash
They played the mash, it caught on in a flash
They played the mash, they played the monster mash"