Kylie Jenner’s viral video of her singing “Rise and Shine” to her daughter caused fans to make jokes and memes. However, the fun did not last when netizens heard an online rumor.

A post on Twitter claiming that Kylie Jenner sent a ‘cease and desist’ letter for a small family business over a shirt design has left some followers on the microblogging platform enraged.

According to the screenshot posted, Jenner allegedly sent the Gold Coast business a document asking them to stop selling shirts with the words “rise and shine” on print. The business was reportedly selling the shirts since 2017 - months earlier than Jenner's attempt for trademark.

“The design wasn’t about her, it was just a shirt with a different holiday feel,” the alleged owner of the business called “Cased Clothing” was quoted saying on the report.

The cosmetics mogul cleared up her involvement on the incident.

“Guys, please don’t believe everything you read,” said Jenner in a tweet. "I have not sent any Rise and Shine cease and desist letters."

She also mentioned that she found the public reaction over her viral video “unexpected”.

"I had a lot of fun with it, and I have laughed so hard seeing everyone's memes since the video came out a few weeks ago," she said. "There are no lawsuits, no cease and desist letters. Happy Sunday."

Shortly after her “rise and shine” clip went viral, Jenner has submitted two trademark applications for the phrase and started selling merchandise including hoodies.

The clothing brand mentioned in the post, Cased Clothing, also released a public statement on Instagram which denied all claims made by the article.

"Kylie has not sent us any letters," the company said on Instagram. "We are not being sued.”

Jenner had previously been involved in a trademark battle with singer Kylie Minogue.The “Keeping Up With the Kardashians” star applied to register the trademark “Kylie” with US Patent and Trademark Office (USPTO) in 2015.

In February 2016, Minogue filed an opposition against the attempt which she cited would “damage” her branding and cause confusion to her established reputation. Jenner was described as a “secondary reality TV personality".

Facing public outcry on business brand marks is not new to the Kardashian-Jenner family.

Reality star Kim Kardashian faced backlash, especially from the Japanese public, after revealing that her new underwear line would be called “Kimono Solutionwear”.

Kyoto mayor Daisaku Kadokawa wrote Kardashian an open letter asking her to reconsider her attempt to trademark the word. Kadokawa is well-known for her preference for wearing kimono – a traditional Japanese attire embedded on the country’s culture – in official events and engagements.

Kylie Jenner Kylie Jenner attends the MTV Video Music Awards at Radio City Music Hall on Aug. 20, 2018, in New York City. Getty Images/Jamie McCarthy