The track, which still earns Holder an estimated £500,000 in royalties every year, is clearly also a mainstay in the Price/Holder household.
In her column in the current issue of Cheshire Life magazine, Price wrote: “Christmas a deux with Noddy Holder has its moments and, yes, he does wake me up on December 25th by bellowing… Can you guess?
“If you think it’s loud on the record, you have no idea!” she added.
"Never in my wildest dreams did I imagine I would end up married to a man as synonymous with Christmas (almost) as much as Santa himself.”
The pair, who share 27-year old son Django, married in 2004 and have been together for 32 years.
She continued: “It’s a bit weird to know my husband is such a big part of everyone else’s festivities.
“Slade’s Merry Xmas Everybody will be 50 years old next year. The track is now as much a part of Christmas as crackers and cranberry sauce.”
Price also has to contend with the track “following her everywhere” as it’s played in so many shops.
The Wolverhampton band formed in 1966, with drummer Don Powell and violinist/bassist Jim Lea, alongside Holder and Dave Hill.
Merry Xmas Everybody became their biggest hit, with its catchy chorus: “So here it is, Merry Christmas/Everybody’s having fun...”
Holder and Lea left the band in 1992, with Hill and Powell continuing on as Slade with a string of other musicians.