Miranda Lambert: 'I had to sing with someone with a penis to get a No. 1'

Miranda Lambert says she "had to sing with someone with a penis to get a No. 1" hit.

The country superstar's duet with Jason Aldean, "Drowns the Whiskey," was released in May and hit the top spot on Billboard's Country Airplay chart -- and No. 3 on the Hot Country Songs chart -- by the end of the summer. It was her first No. 1 song since 2014's "Automatic," and Lambert was very candid about why she thinks the song was able to top the charts.

"Yes, I had to sing with someone with a penis to get a No. 1," she told the Washington Post. "I do like this person, Jason Aldean, a lot ... so it was a great song with an old friend."

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Miranda Lambert at the 2017 CMA Awards
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Miranda Lambert at the 2017 CMA Awards
NASHVILLE, TN - NOVEMBER 08: Singer-songwriter Miranda Lambert attends the 51st annual CMA Awards at the Bridgestone Arena on November 8, 2017 in Nashville, Tennessee. (Photo by Michael Loccisano/Getty Images)
NASHVILLE, TN - NOVEMBER 08: Singer-songwriter Miranda Lambert attends the 51st annual CMA Awards at the Bridgestone Arena on November 8, 2017 in Nashville, Tennessee. (Photo by Michael Loccisano/Getty Images)
NASHVILLE, TN - NOVEMBER 08: Singer-songwriter Miranda Lambert attends the 51st annual CMA Awards at the Bridgestone Arena on November 8, 2017 in Nashville, Tennessee. (Photo by John Shearer/WireImage)
NASHVILLE, TN - NOVEMBER 08: Singer-songwriter Miranda Lambert attends the 51st annual CMA Awards at the Bridgestone Arena on November 8, 2017 in Nashville, Tennessee. (Photo by Michael Loccisano/Getty Images)
NASHVILLE, TN - NOVEMBER 08: Singer-songwriter Miranda Lambert attends the 51st annual CMA Awards at the Bridgestone Arena on November 8, 2017 in Nashville, Tennessee. (Photo by Michael Loccisano/Getty Images)
NASHVILLE, TN - NOVEMBER 08: Singer-songwriters Anderson East and Miranda Lambert attend the 51st annual CMA Awards at the Bridgestone Arena on November 8, 2017 in Nashville, Tennessee. (Photo by Michael Loccisano/Getty Images)
NASHVILLE, TN - NOVEMBER 08: Singer-songwriter Miranda Lambert attends the 51st annual CMA Awards at the Bridgestone Arena on November 8, 2017 in Nashville, Tennessee. (Photo by John Shearer/WireImage)
NASHVILLE, TN - NOVEMBER 08: Singer-songwriters Anderson East and Miranda Lambert attend the 51st annual CMA Awards at the Bridgestone Arena on November 8, 2017 in Nashville, Tennessee. (Photo by John Shearer/WireImage)
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"It is interesting that I haven't had even a Top 20 in a long, long time," she went on. "And then it goes No. 1 because it's a dude. But you know -- if we went and looked at how many singles or records were sold for the Top 10 songs right now, I'd probably triple it on record sales. So it doesn't matter."

Indeed, Lambert's latest album, "The Weight Of These Wings," went platinum, but failed to produce a Top 10 hit.

The discrepancy between men and women in country music has been a hot-button issue for years. The Tennesseean reported that just 10.4 percent of songs on the country radio charts were sung by female artists, which was a decrease from 13 percent the year before, the Washington Post notes.

Lambert and Aldean are set to perform "Drowns the Whiskey" at the CMA Awards on Wednesday night, where there are zero female nominees in the night's top category, Entertainer of the Year.

RELATED: See photos from the CMT Artists of the Year ceremony, where every honoree was female:

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2018 CMT Artists of the Year: Red carpet arrivals
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2018 CMT Artists of the Year: Red carpet arrivals
NASHVILLE, TN - OCTOBER 17: Carrie Underwood attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Carrie Underwood attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Miranda Lambert accepts an award onstage during the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Maren Morris (L) and Ryan Hurd attend the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Hillary Scott(R) and daughter attend the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Honoree Hillary Scott of musical group Lady Antebellum attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Kimberly Schlapman (L) and Karen Fairchild of musical group Little Big Town attend the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Kelsea Ballerini attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Martina McBride attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Trisha Yearwood attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Sara Evans attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Sheryl Crow attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: JoJo Fletcher attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: (L-R) Dave Haywood, Hillary Scott and Charles Kelley of musical group Lady Antebellum attend the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Jason Kempin/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Maddie Marlow (L) and Tae Dye of musical duo Maddie & Tae attend the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Tori Kelly attends the 2018 CMT Artists of The Year in a dress by Greta Constantine at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images for CMT)
NASHVILLE, TN - OCTOBER 17: Elle King attends the 2018 CMT Artists of The Year at Schermerhorn Symphony Center on October 17, 2018 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images for CMT)
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