Jack White performed at a sold out Masonic Temple Friday, April 08, 2022, in Detroit.

A very good day turned into an extraordinary Friday night for Jack White.

To a surprised roar from a packed Masonic Temple Theatre audience, White culminated his Detroit homecoming show by proposing to his girlfriend, musician Olivia Jean.

Making their way back out for the show’s ostensible encore five minutes later, White and Jean had another jubilant jolt for the crowd, tying the knot in an onstage wedding ceremony officiated by Third Man’s Ben Swank. Their respective bass players were the best man and maid of honor, while members of their families, including White’s mother, Theresa Gillis, stood by.

In a long history of memorable Jack White shows in Detroit — stretching back more than two decades to his White Stripes years — this one unexpectedly wound up near the top. It was the kickoff of White’s Supply Chain Issues Tour and was expected to be a standard celebratory homecoming for the artist at the Masonic, his favorite hometown venue.

But when he invited Olivia Jean onstage to join a performance 80 minutes into the set, the show instantly became the stuff of local legend. The raven-haired singer-songwriter — born Olivia Jean Markel and raised in Detroit — was introduced by White as his girlfriend.

“And I love her very much,” White said of Olivia Jean, a member of his label’s Black Belles trio. Having performed an opening set ahead of White’s show Friday, she joined her beau and his band on the romping “Hotel Yorba.”

And then, before the song’s “let’s get married” lyric in the third verse, something seemed afoot. White headed to the side of the stage, gesturing to his assistant Lalo Medina to begin videoing on his cell phone. The music dropped.

“I’ve got a question for you,” White said to Olivia Jean. “Will you marry me?”

White pulled out a ring for the overwhelmed Olivia Jean, who signaled a gushing yes. Her face tear-streaked, she helped finish the number before White carried her offstage to the buzz of guitar feedback.

Olivia Jean in a promotional photo for her 2019 album "Night Owl," released on Third Man Records.

The Masonic crowd, knowing it had just witnessed something special, awaited the show’s invariable encore. It came — but now with yet another surprise in store.

Swank, a Third Man cofounder, officiated an unexpected wedding ceremony as the couple took their vows.

The marriage is White’s third: His White Stripes bandmate Meg White was his wife from 1996 to 2000, while he was married to English model Karen Elson from 2005 to 2013.