Australian-born, Nashville-based sibling duo for KING & COUNTRY are no strangers to holiday music—they have released a handful of Christmas singles (and an EP, 2013's Into the Silent Night) over the years, including a particularly popular take on the holiday classic "Little Drummer Boy." On their first proper Christmas album, Joel and Luke Smallbone dig deeper into the Christmas spirit with a collection of songs that explore the spiritual side of the holiday, like "Go Tell It on the Mountain" (featuring Gabby Barrett) and "O Come, O Come Emmanuel" (featuring NEEDTOBREATHE). They also include two original songs: "The Carol of Joseph (I Believe in You)," which considers the birth of Jesus from Joseph's perspective, and the soaring, emotional "Heavenly Hosts."