Miranda Lambert stepped out for a special event, and her fans can hardly recognize her! The "Mama's Broken Heart" singer attended a party in Round Top, Texas, and she really leaned into the theme with an incredible costume.

Each year, Amie and Jolie Sikes (the sisters behind Junk Gypsy) host Junk-O-Rama Prom during Texas Antiques Week in Round Top. This year's theme: Under the Sea. The sisters recommended a dress code inspired by the early 1960s. The invitation said, "Come in traditional vintage prom attire, with every accessory you own! Or channel your very own version of coastal cowgirl goes glam! Seafaring Elton John, maybe? Landlocked cowgirl mermaid! Or a swashbuckling rhinestone adorned Capt Jack Sparrow!"

Miranda gave her own spin on the theme with a head-to-toe cowgirl mermaid look, complete with blue wig, blue cowboy hat, and shimmery sequins pants. She shared a carousel of photos from the event, which she attended with her mom, Bev, and wrote, "Just old friends makin new memories. Round top antiques week 2025. Under The Sea prom with @junkgypsy. My favorite theme yet!"

Fans ran to the comments section to applaud Miranda's outfit. They left messages like, "Miranda, blue is your color 🤩💙" and "🩵💙LOVE the outfits!!" Country singer Elle King wrote, "You’re actually the cutest ever."

The official Junk Gypsy account chimed in to say, "🩵🧜‍♀️🤠🩵So glad us cowgirl mermaids got to add another adventure to the scrapbook. It’s getting REAL full! Also THANK YOU to all our amazing friends & customers that let Miranda be a “normal” person and just have fun at prom! We’ve said it before and we’ll say it again, our customers are THE BEST!!!"

We're already putting this event on our calendar for next year!

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Katie Bowlby is Digital Director at Country Living, where she covers pop culture news including country music, Yellowstone, and all things HGTV, plus gift guides and product reviews. She has been with Country Living for more than 11 years. Before that, she worked for Southern Living. The Indiana University grad also stitches up the cross-stitch pattern for every issue of the magazine.