The change in lyrics was reportedly made to promote clearer understanding of the song in a modern-day context.
A spokeswoman for Hallmark said the line was intentionally changed to prevent misinterpretation by holiday shoppers.
"When the lyrics to 'Deck the Halls' were translated from Gaelic and published in English back in the 1800s, the word 'gay' meant festive or merry," Kristi Ernsting told The Huffington Post in an email. "Today it has multiple meanings ... the trend of wearing festively decorated Christmas sweaters to parties is all about fun, and this ornament is intended to play into that, so the planning team decided to say what we meant: 'fun.'"
She added: "That’s the spirit we intended and the spirit in which we hope ornament buyers will take it."
Ellen has now responded with her own Xmas ornament. Oh I hope that Ellen puts these ornaments for sale on her website....I would definitely buy them as fun xmas gifts!!!