Zach Bryan delivered a memorable show at Red Rocks on Sunday night (August 10), surprising fans with a series of special guests and unique collaborations. The evening started with Bryan making an unexpected cameo during Jack van Cleaf’s opening set, dueting with the rising country singer on his breakout hit, “Rattlesnake.” During Bryan’s headlining performance, the country superstar teamed up with Kings of Leon frontman Caleb Followill for the live debut of their new collaborative single, “Bowery.” Bryan also performed his recent duet, “Madeline,” with Gabriella Rose, and was joined by Canadian folk duo Ocie Elliott – another one of his openers – to sing his 2024 hit “28” amid a roaring sold-out crowd of around 10,000 fans. Bryan’s last appearance at Red Rocks was his snowy 2022 performance that eventually became a hit live album, while his next scheduled gig is at San Francisco’s Golden Gate Park on Friday (August 15) with support from Kings of Leon, Turnpike Troubadours, and Noeline Hofmann. (Holler)