Country music star Morgan Wallen reportedly flipped an upright piano onstage during his concert in Denver, Colorado, on Friday night.

The incident, which occurred during the encore, was attributed to technical difficulties, specifically Wallen's inability to hear the instrument as he played.

The moment unfolded during his performance of "Sand in My Boots," a piano ballad from his 2021 album, *Dangerous: The Double Album*.

After realizing he couldn't hear the piano, Wallen reportedly finished the song a cappella.

Fan videos suggest the audience reacted positively to both the a cappella performance and Wallen's subsequent action of pushing the piano over.

He then concluded the show with "Last Night" and "Whiskey Glasses."

This onstage display drew comparisons to a similar event in 1987 when Billy Joel famously flipped his keyboard during a concert in Moscow.

While Joel's action was reportedly a protest against a film crew, Wallen's appears to have stemmed from the technical issues he encountered.

Wallen's Denver performance at Empower Field at Mile High Stadium also featured a notable walk-out, a signature part of his stadium shows.

On Friday, he was joined by legendary Broncos quarterback John Elway.

Wallen was scheduled for a second night at the same venue on Saturday.

Following his Denver dates, the tour is set to continue next weekend in Pittsburgh with two headlining shows at Acrisure Stadium.

The Pittsburgh dates will feature Brooks & Dunn, Gavin Adcock, and Zach John King on the first night, with Ella Langley joining for the second night.