Kelly Clarkson is heading down the aisle! Boyfriend, and Reba McEntire's stepson, Brandon Blackstock popped the question Friday night with a yellow canary diamond ring, designed by Jonathan Arndt.

Kelly was all a-Twitter over the news Saturday, posting, "I'M ENGAGED!!!!! I wanted y'all to know!! Happiest night of my life last night! I am so lucky and am with the greatest man ever."

Brandon works as Blake Shelton's manager at a Nashville-based management firm.