Myleene Klass has admitted she is unsure whether the mocking reply she posted online to emails from fellow school mothers makes her "courageous or an idiot", but maintains she was trying to convey a serious message in a humorous way.
The singer said there are "sadly" some hard feelings in the playground following the storm of publicity created by her social media posts about a class collection for birthday gifts, with some mothers reportedly complaining their confidences had been betrayed.
But Klass, a mother-of-two who lives in north London, has explained her reasoning behind publicising the "bonkers" emails which, she confirmed, were a year old.
The 36-year-old said: "My intention was to stop all these serious, money-focused exchanges and remind parents, all of us under pressure to do the very best for our children, of what birthdays should be about.
"Though they were old exchanges, I've received countless emails like this since."
The Classic FM presenter's tongue-in-cheek email reply had been entitled 'Let's put the fun back into Bdays!' and, in response to suggestions from mothers of gifts of a Kindle and desk for their children, she jokingly said her daughter Ava might like a Unicorn for her birthday.
The former Hear'Say member said it is the responsibility of parents to "stop the culture of materialism that has become so embedded in our society".
She also spoke of the pressure some parents face at feeling an expectation to contribute £10 (€13) each time their child's classmate has a birthday, although she admitted she is in "a privileged position" compared to many.
Klass' actions gained a mostly positive reaction, she said, but she admitted she understood where the email authors were coming from, with one explaining that she saw it as problem-solving for a child to receive one gift instead of separate presents from each class member.
Klass made the comments as she took part in her third photoshoot for Littlewoods.com - showcasing the retailer's latest line of lingerie.