Overview

• The couple married in 2018 and reside in Montana.
• Grimes, 40, stars as Kayce Dutton on the hit series 'Yellowstone.'
• Bianca's Instagram post included the caption, 'Can't wait to meet you little one.'
• Grimes is also a musician, recently releasing his debut album.
• 'Yellowstone' will return for its final season on November 10.