The country music star opted for a black strapless Roberto Cavalli gown that showcased her stunning diamond necklace, reportedly containing 380 carats and worth $31 million. "It's worth more than me!" she crowed to Ryan Seacrest.
See the pop star in her Grammys gown below!
See all the red carpet dresses from the 2013 Grammy Awards!
Want more? Be sure to check out HuffPost Style on Twitter, Facebook, Tumblr, Pinterest and Instagram at @HuffPostStyle.
Do you have a style story idea or tip? Email us at firstname.lastname@example.org. (PR pitches sent to this address will be ignored.)