United Kingdom, April 16 -- Reba McEntire's son Shelby Blackstock is expecting his first child - a baby boy.

The former NASCAR driver - whom the singer has with her 69-year-old ex-husband, music manager Narvel Blackstock - and his wife, Marissa, made the joyous announcement outside Cinderella Castle in Magic Kingdom Park at Walt Disney World, Orlando, Florida, on Wednesday (15.04.26).

In a series of adorable shots posted to Instagram, the couple posed outside the theme park icon as they held up a white onesie that featured an embroidered sleeping Mickey Mouse and "Blackstock October 2026" in blue lettering, embraced each other and showed images from a sonogram.

The pair captioned the sweet joint post: "Oh, BOY! We're beyond excited to ...