Miranda Lambert Reveals Romance Is Changing Her Tune

Miranda Lambert wouldn't trade boyfriend Blake Shelton for anything ... or would she?

"Falling in love is awesome, but it's horrible for songwriting," Miranda tells Billboard. But in spite of how the happy couple's relationship may have put something of a damper on the "sad, cheating, mad, killing-people songs," the young firecracker says she was OK with penning a few love songs for her new album, 'Revolution,' due out later this month, especially since she got to write them with her honey.

Miranda says that Blake began writing 'Sin for a Sin' "from a girl's perspective ... even saying things that a girl would say when we were sitting there writing. It was a really cool bonding experience for us."

Another of their co-writes, 'Love Song,' has a title that gets straight to the point, but it turns out the couple had a little help with the tune. Miranda reveals that Blake was hanging out with Lady Antebellum's Charles Kelley and Dave Haywood when, "I got a call about one in the morning. I think they'd had a few martinis and had this big plan to come down [to Oklahoma] and write. I thought they'd forget about it, but they came down two weeks later."

One song neither of them wrote, however, was originally pitched to Blake but ended up on 'Revolution' instead. 'The House That Built Me,' written by Tom Douglas and Allen Shamblin, tells the story of revisiting a childhood home and the memories that conjures.

"It sounds like someone wrote it for me," Miranda says. "But I found it [on a CD while] riding around with Blake. I started [bawling] when I heard it. He said, 'So I guess you want that song?'"

Miranda and Blake not only write songs together, they share a common interest in Twitter, although Blake's tweets are a bit more notorious than Miranda's at this point!

"Blake taught me how to tweet, which is funny because he's not technically inclined," she says. "It's just fun. It's an outlet where I can say random crap. What I didn't know was that people would be interested in that random crap!"

Miranda's 'Revolution' is set for release on Sept. 29.