Singer Jack White marries his girlfriend on stage during concert

Audience members were left stunned after singer Jack White proposed and tied the knot with his girlfriend Olivia Jean during an on-stage performance.

The 46-year-old Grammy Award winner rocker wed Jean, a 32-year-old singer on his Third Man label who had served earlier in the evening as his concert's opening act, on stage at the Masonic Temple Theatre, a storied venue in the pair's mutual hometown.

The surprise marriage proposal itself had come just minutes earlier, in the middle of a rendition of 'Hotel Yorba.'

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White shared a photo of the proposal alongside a caption that referenced the 'Hotel Yorba' lyrics and read, "'Let's get married in a big cathedral by a priest.' 04.08.22."

A rep for White told People: "the marriage is legal and valid."

The singer's Supply Chain Issues tour commenced on a great note with a sold-out show. White's mother Teresa Gillis and Jean's father Brent Markel were also in attendance for the impromptu proposal.

White directed a question to the crowd before getting married saying, "It's been such a great day, mind if we get married right now?"

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The wedding ceremony was officiated by White's Third Man Record's co-founder Ben Swank.

Swank premised the nuptials, saying, "Dearly beloved, we are gathered here today to get through this thing called life," referencing Prince's hit song 'Let's Go Crazy.'

White was formerly married to his White Stripes bandmate Meg White from 1996 to 2000 — he took her last name and continues to use it professionally.

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In 2005, he married British model, Karen Elson and together they share daughter Scarlett Teresa, 15, and son Henry Lee, 14. The pair split up in 2013.