Singing ghost and title character of "The Spectral Singer" story of comic book Adventures into the Unknown #5 (June-July 1949). She haunts old Craigside Hall, singing her "weird, ghostly song":
A century of midnights fall
While I seek my love in Craigside Hall
I'll walk the shadows in my pall
Till I find my love in Craigside Hall
She was the lover of Captain Bradwell. "Captain Bradwell was one of the earliest colonial rebels- a hundred years before the revolution! Craigside Hall became an arsenal- and legend says that Alicia fell deeply in love with George Hastings- a dashing privateer!" They perished when gunpowder stored under the mansion blew up. Their distant descendants help their ghosts reunite.
It's unclear if Bradwell had any sort of singing career before she was a ghost.