Miranda Lambert has performed "Little Red Wagon" several times at big awards shows, including the 2015 Grammy Awards and, most recently, the 2015 ACM Awards. Fans love it, eagerly singing along, "You can't ride in my little red wagon!" but the big question remains: What does it actually mean?

Writers and critics have debated plenty about the "little red wagon" in the song: Is it a metaphor? Is it a person? Finally, Lambert has cleared things up.

"I think it's just about a state of mind. You know, [like], 'I've got this on my own. I've got swagger,'" she tells Glamour. "I think it's just sassy, and it's up for whatever interpretation you have as a person."

Through the years, Lambert has certainly shown she's got swagger, sass and a plethora of talent. Even though there's been a huge lack of females in country music lately, she took home trophies in three major categories at this year's ACM Awards — Song of the Year, for "Automatic;" Album of the Year, for Platinum; and Female Vocalist of the Year — and received one of the 50th Anniversary Milestone Award.

"People are asking all the time why aren't there more females [in country music]," Lambert says. "I think there's a lot of great guy artists right now, and they're having their moment, and it will go through phases, but there's room for all of us.

"It makes me so proud to have a spot here and to be waving that flag for the girls," she adds. "There's so many great female artists that have paved this way for me, and there's so many coming along behind us. I just feel excited about where country music is going to go and all the female artists on the way up. I'm so thankful for my job, and I love all of the guys, too."

"Little Red Wagon" was actually written and first cut by another singer, Audra Mae, but when Lambert heard it, she immediately fell in love.

“When I heard it, I thought, ‘Oh god. This girl is ridiculous,’” she recalls. “So I stalked her down. We’re the same age, and she’s from Oklahoma. I asked her point blank: ‘What’s your plan for "Little Red Wagon"? Can I cut it? Can I even try to be a hair on the a-- of how you did it?’”

And the rest is history.

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