Bon Jovi already went Nashville a while ago, but is the world ready for a country-fied Aerosmith? That’s what they’ll be getting with a Steven Tyler/Carrie Underwood that appears on the group’s new album, Music From Another Dimension!, due in stores Nov. 6. Steven Tyler tells Yahoo! Music that he’s certain the song will be a radio smash.

But as much benefit as there might be to including a country power ballad featuring one of America’s most wholesomely leggy stars, how does that square with this comeback CD being touted as a return to seminal 1970s hard-rock form? After all, Tammy Wynette wasn’t making any guest appearances on Rocks, was she?

Apparently, there was a minority faction within the band that wondered that very thing.

Tyler told us how the duet spontaneously came about. In the recording studio, “I sang it a little country,” he recalls, “and one of the guys in the band said, ‘You know what, you need to re-sing it, because you’re singing it too country,’ and I said, ‘Well, that’s how I wrote it.’ Then Marti Frederiksen–who wrote it with me–and I were just talking about, ‘If it sounds like a country song, why not get one of them-thar people to sing on it?’

“So I called Carrie up, because she’s a friend of mine. She was in L.A. and was leaving the next morning, and I said ‘Get over here quick!’ And so Joe (Perry) was… I’m not sure if Joe was there; I called him up. But the rest was history. She sang on it and it’s just perfect. It’s one of those moments that just is. And because she did, will it be a hit? Positively. You f—ing think? She’s so big! And it’s not a bad song. That’s pretty cool, right?”

But didn’t we hear that not everybody in Aerosmith was quite so hot on this country coolness?

“There was a little bit of resistance,” acknowledges Brad Whitford, adding, “It didn’t come from me. But I heard it [from elsewhere in the band as] like, ‘Wait a minute–so this is an Aerosmith album, right? It should be all Aerosmith.’ But it’s like, wait a minute, do you have a problem when you listen to Bob Dylan’s record and this guy’s sitting in on guitar? No. It’s cool, right? If you’re in a position where you call up Carrie and she says ‘I’d love to come over,’ then f—in’ A! Those two voices together are absolutely mind-bending when they sing that thing. It’s like God was looking down and smiling.”