The Detroit-born singer, songwriter and producer invited Jean to the stage to participate in his performance and introduced her as his girlfriend.
White asked her to marry him during a cover of “Hotel Yorba” and just before “Let’s Get Married.”
Jean, a compatriot from Detroit, cried and said yes, the Detroit Free Press reported.  White then took her off stage.
The two later reappeared for an encore and were married in an on-stage ceremony to Ben Swank, co-founder of the White label.
Jean is a member of the garage goth rock band Black Belles of the record label, which is on hold, and has also signed from his record label as a solo artist.
White, who founded White Stripes, had been married twice before.  His show on Friday was his first solo show in his hometown since 2018 and he started the Supply Chain Issues tour and the release of his new album “Fear of the Dawn”.