9 Hidden Easter Eggs to Look For While Waiting in Line For Disney's Haunted Mansion

You'll notice the name Ravenscroft on the organ. That's for Thurl Ravenscroft, the lead vocalist (and famous baritone) for the Haunted Mansion song, "Grim Grinning Ghosts." His voice can also be heard in 101 Dalmatians, The Sword in the Stone, Mary Poppins, The Jungle Book, and Pete's Dragon, among other Disney films.