Trio redux? "You know when things go so smooth, it's just meant to be? That's what it was like," Kelly Clarkson tells Billboard. No, she wasn't referring to Brandon Blackstock, whom she wed on Oct. 20, but to recording "Silent Night" with new mother-in-law Reba McEntire and Trisha Yearwood. The a cappella track closes Clarkson's Christmas album, Wrapped in Red, but it won't be the last you'll hear of the trio.