John Lennon called hers "The greatest rock and roll voice of them all." Who was he talking about, the only female singer in both the Country Music and Rock and Roll Halls of Fame?

That would be one of my favorites; little Brenda Lee!

Sailracer --- might have known that'd be you
again! Good answer --- of course.
(I can hear you sing "I'm sorry, sooo sorry")

... Brenda Lee continues to record and perform all around the world, previously cutting records in four different languages. She is a member of the Rock and Roll Hall of Fame, the Country Music Hall of Fame, and the Rockabilly Hall of Fame. - Wikipedia.com

"Radio's playing some forgotten song,
Brenda Lee's Coming on Strong"

"Radar Love" by Golden Earring