Mysterious Melodies on the River

One thing that I really miss about Mickey's Halloween Party that has never been replicated at the new separate ticket Disneyland Resort Halloween event is the Cadaver Dans, the ghostly acapella group that floated through the mists of the Rivers of America to serenade guests with eerie tunes.  Appearing only during Mickey's Halloween Party, they added a hauntingly harmonic ambiance to this part of the park.  Though Oogie Boogie Bash doesn't really need any sort of floating entertainment, it would still be cool to see a bit of these croons return for the DCA event, which has changed minimally since its return from COVID.  Put it on the wishlist?