During a recent interview with Billboard, Mötley Crüe bassist Nikki Sixx has shared the story of why they covered Madonna’s ‘Like A Virgin’ for “The Dirt Soundtrack”.

He also revealed the secret message to Metallica. Here’s the statement:

“Nikki said the idea to record “Like A Virgin” came to him while he was taking a stroll with his dogs, which he does at the end of each day as part of his meditative practice. “When my mind’s open like that, these ideas pop in,” he said. “And [it] popped in my head, and I sort of like looked up, as if to laugh at God, and went, ‘You’re pretty funny.'”

Although Sixx initially felt it was “actually a really horrible idea” to cover the song, he told producer Bob Rock about it, and Rock replied: “Yeah, I don’t know. Good luck!” But Sixx impressed him and drummer Tommy Lee with a rough demo he had cut, and the band completely reworked the track but left the lyrics intact. (“It was weird to hear Vince [Neil] singing, ‘I’m like a virgin,'” he admitted.)”

On Mötley Crüe’s message to Metallica, Nikki said:

“There’s a part of the song that “does this little gahnk-guh-guh-guh-guh-guh-gahnk that Mick [Mars, guitar] does, a bit of a nod to Metallica because [when] Metallica heard the ‘Dr. Feelgood’ album, [they] used Bob Rock to make the Black Album. It’s kind of a nod back to those guys because we were workin’ with Bob again.”

Asked if Madonna knows about Mötley recording the cover, Sixx said:

“I don’t know. She will soon, I imagine. Maybe we can get her in the video.”

Click here for the entire interview.