Miranda Lambert and Maren Morris are 2019 Roadside Bars & Pink Guitars tourmates, and, it turns out, they're also collaborators. Lambert's next album will feature Morris on a song called "Too Pretty for Prison."

"I knew from the second we were writing it that I would love to have Maren on it," Lambert tells iHeartRadio of the song, which she co-wrote with the Love Junkies (Hillary Lindsey, Lori McKenna and Liz Rose). "It popped in my head right away before the song was even done. So, I asked her to come in and sing on it."

Lambert describes "Too Pretty for Prison" as "a girl anthem." The song was inspired by another country star, Little Big Town member Karen Fairchild. "We were having a wine night, and I always tell all of my friends leaving, 'Don't leave if you've been drinking, because you're too pretty for prison,'' Lambert explains. "So, thanks Karen, for sharing that wine bottle with me and for taking an Uber."

The release date for Lambert's next studio album has not yet been announced, but she shared its first single, "It All Comes Out in the Wash," on Thursday (July 18). That morning, she also released the studio version of "Locomotive," a song she debuted during CMA Fest 2019 in early June.

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