She was replying to a tweet from Pete Danton, who is playing two night's in Dublin's Olympia Theatre.
He posted a picture of himself on a horse, saying: "Ireland! Good to be back! 2 nights at the Olympia."
Her short reply to him has made Irish tweeters very giddy.
"You Have a horse outside. Rubberbandits?" she asked.
Sabrina the Teenage Witch casually referencing the Rubberbandits is possibly the most confusing thing ever: https://t.co/2u3IW0XsUo— Valerie Loftus (@valerieloftus) February 28, 2015
Sorry, I just need clarity on this, @MelissaJoanHart. Are you saying you know of the Rubber Bandits?— Barry J Whyte (@whytebarry) February 28, 2015
It's nice to know Melissa is a fan of the Rubberbandits, just like us.