Kelly has been dating her boyfriend, Brandon Blackstock, for a year now and she just announced today that the two are engaged via Twitter. Congratulations to the two! 

@kelly_clarkson: "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 :)" 

She also tweeted a picture of her engagement ring, beautiful! See it here.