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Luke Bryan, who wrote the song “Country Girl (Shake It for Me)” with Dallas Davidson, reveals that he wasn’t comfortable with the subject matter at first.

“I’m the world’s worst at going, ‘Oh my god, oh my god, what are we doing, what are we doing? We can’t talk about country girls shaking their butts all over the place in country music.’ And Dal was just rooting me on, ‘Come on, it’s gonna be good.’ So, I came and started playing it for my producer and my wife and my manager and everybody, and everybody was like, ‘Oh, that thing is gonna be crazy.’”

What a hit the song turned out to be!

Though the song only reached number-five on the Billboard charts, it sold more than six million copies.