Miley, 20, went nude in the video and wore only a pair of boots as she sung about a failed romance atop a wrecking ball, reported E! Online.
"The song's a smash. It wouldn't have mattered if Miley would have worn jeans and a flannel shirt, a tux or a nun's habit-her performance vocally on the tune reflects her roots and sheer God-given talent," Billy, 52, said.
"I'm a song man. A musician singer-songwriter who loves all styles of music. I come from the old school where it starts with an artist and a song, colliding if you will, in a moment where the song, the singer, the producer, the band, and the listener become one," he added.
The 'Achy Breaky Heart' hitmaker had said that Miley would always be his little girl regardless of everything.
