"Legolas’s gf flyin in hot with a pouch full of pixie dust to throw on anyone who doesn’t believe we have the best top 10 in @americanidol history #disneynight ok," Perry captioned a clip of the ear being added on.
Her fun Tinkerbell magic definitely had an impact on her and Bloom's baby girl, Daisy, who Perry said watched her on Idol for the first time on Sunday and loved the outfit.
"My sister sent me a video of her watching the show, I think that's the first time she watched the show and she was like glued to seeing her mom," Perry shared. "These wings will be handed down and she will wear them at some point. I got that video like right after the show started and I was like, 'Awww, my heart!"
Perry is known for trying out some festive looks for Disney Night on the music competition show. In the past, she's dressed up as Snow White, Dumbo and Ursula.
Perry also coyly hinted at her rumored Las Vegas residency, and said there will soon be news on that front and she's "going to announce it very soon."
When asked about the possibility of performing live in Las Vegas again after more than a year of cancelled shows and closed venues due to the pandemic, Perry said, "Oh, it would be really nice to perform anywhere! Especially in Vegas! I'd like to perform outside of my room, even. I'll even go back to the Farmer's Market!"
American Idol airs Sundays at 8 p.m. ET/PT on ABC.