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Kacey Musgraves is giving proof that she's been working with the Beach Boys' Brian Wilson. 

Over the weekend the country star tweeted a photograph of her and the legendary rocker in the studio.  Kacey included the message that she's "had the recent honor of collaborating" with Wilson on a song for his upcoming album, and adds that it was an "incredible experience." 

Another photo of Kacey and Brian is posted on Wilson's Facebook page.  They say they recorded a song called "Sharing a New Day." 

Kacey adds that she felt "so honored" to work with Brian, and calls him a "sweet man." 

Rolling Stone recently reported that Wilson had tapped Musgraves along with a number of other younger stars for the project.  A release date for Wilson's album hasn't been announced yet.