Kevin Costner is breaking the hearts of "Yellowstone" fans everywhere. The 68-year-old made an announcement in a recent Instagram post, noting that he's looking forward to making new music soon, but made no mention of the hit show. Costner shared a photo of himself on stage holding a guitar writing, "We’re coming up on the 3rd anniversary of our #TalesFromYellowstone album.The band and I had so much fun making and playing this project for you guys." His caption continued, "I’m in movie mode right now, but look forward to getting the band back together for more music soon!" The movie he's most likely referring to is "Horizon," the Western that's become his passion project.