Little Big Town made plenty of Grand Ole Opry attendees happy on Tuesday night (June 7) with a surprise appearance by "Happy" hitmaker Pharrell Williams. The country quartet and the producer, who was making his Opry debut, shared a new song called "C'mon."

In the video above, shot during the special moment, LBT member Kimberly Schlapman tells the crowd, "I am so excited because we have a big ol' treat for you special people," before introducing the famous producer and rapper. Karen Fairchild adds, "He's from Virginia, and he loves country music."

The upbeat "C'mon" comes from Little Big Town's forthcoming new album, Wanderlust, which is slated to drop on Friday (June 10). The record includes eight songs written by the group and Williams, including "C'mon," and the band says that the project “is the result of an incredible friendship and chemistry."

“What started out as one writing session a few months ago turned into multiple writing sessions, as well as back-and-forth trips from Nashville to Los Angeles. When the songs started coming together, we realized it was too special to not share with our fans,” Fairchild continues. “Pharrell loves country music and is a huge fan of harmony. That shared passion and appreciation took us on a creative journey we had no idea would happen.”

Previously, Little Big Town revealed another of Wanderlust's brand-new tracks, “One of Those Days,” on The Voice finale. That song is available for download via iTunes.

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