Still the one? Not anymore.

Country crossover Shania Twain and her record-producing hubby, Robert "Mutt" Lange, have separated after nearly a decade and a half of marriage.

"Shania Twain and her husband, music producer Robert 'Mutt' Lange, are separating after 14 years of marriage," the couple's told E! News. "This is a private matter and there will be no further comment at this time."

The musically inclined duo tied the knot Dec. 28, 1993, six months after they met. Lange was the first to make contact, reaching out to the up-and-coming singer and offering to produce songs for her after hearing samples of her work.

They went on to work extensively—and on Twain's part, nearly exclusively—together throughout her career, sharing numerous producing and songwriting credits on the singer's multiplatinum albums.

Twain, 42, and Lange, 59, who split their time between the U.S. and Switzerland, took their collaboration outside the studio as well, welcoming their only child, son Eja D'Angelo, in August 2001.