(Radio.com) Justin Timberlake almost broke the internet in March when country music fans saw a photo of him hanging out with Little Big Town's Karen Fairchild and Kimberly Schlapman.

At the CMT Music Awards, producer Pharrell Williams shared that JT recorded some background vocals in for "C'mon," a song from the band's upcoming album, Wanderlust, which he produced.

"We were in the same studio at the same time. So we had Justin in one room. Little Big Town in another room," Williams told ET. "Quite naturally, people are going to visit each other and Justin ended up singing on one of the songs."

Fairchild added, "It was like the old days when artists used to hang out in the studio and you might hop in and listen to somebody's song. He came down and listened to what we were doing. He was like, 'Oh my gosh, what if I sang this?'" Read more here.

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