Elon Musk and Grimes have split up after three years together, according to reports.
Musk, who is the founder of SpaceX and Tesla, confirmed to Page Six that he and the Canadian singer are semi-separate but on good terms.
The 50-year-old added that they will continue to co-parent their one-year-old son, X Æ A-Xii Musk.
"We are semi-separated but still love each other, see each other frequently and are on great terms," Musk told Page Six.
"It's mostly that my work at SpaceX and Tesla requires me to be primarily in Texas or travelling overseas, and her work is primarily in LA. She's staying with me now, and Baby X is in the adjacent room."
The pair started dated in May 2018 and welcomed their first son two years later.
They were last seen together at the Met Gala on 13 September, when Grimes, 33, walked on the red carpet alone and Musk joined her inside.
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Grimes joined Musk at a Met Gala after-party, which he was hosting, and the duo were seen leaving New York together the next day.
Musk was previously married to author Justine Wilson, with whom he has five sons – 17-year-old twins Griffin and Xavier, and triplets Damian, Saxon and Kai, aged 15.
He has also been married twice to Westworld actress Talulah Riley, and dated Amber Heard for a year.