When you are a world wide advocate for animal rights, the fight against the ivory trade should be one of your top concerns.
However, someone may have to remind Ke$ha of that, as it has been revealed the star was 'detained by the U.S. Homeland Security' in 2012 for bringing a piece of the banned elephant part back into the country.
Despite being a vegetarian and a Global Ambassador for the Humane Society of United States, Radaronline reported the now 26-year-old star was stopped with ivory in Los Angeles, California, after returning home from Japan.
Branding the Tik Tok star a 'hypocrite,' the website reported an ivory snuff bottle was seized from Ke$ha at the airport.
Paperwork shows the Timber singer - who is currently receiving in-patient treatment for an eating disorder - was detained on August 27, 2012.
According to officials, the 'snuff bottle made of ivory' was valued at $500.
Property seized: Paperwork shows the 'snuff bottle made of ivory' was valued at $500
The star had been in Japan playing the Summer Sonic festival along side Rihanna, Pitbull and Green Day.
According to the website, another member of Ke$ha's team 'was also detained in a separate incident two days earlier ... after she was discovered having ''possible ivory'' in her possession.'
Ke$ha - who has also starred in campaigns for People For The Ethical Treatment of Animals (PETA) - was the Humane Society's first Global Ambassador.
When her role was officially announced the same year as her detention for ivory possession, the star said: 'I am honored to be the first HSI Global Ambassador because my music is inspired by the freedom and primal beauty of animals and the natural world.
'I take this opportunity incredibly seriously because we are ALL animals. One of the main underlying sentiments of my music is to respect all living creatures just as they are.
'I believe that together, we can change laws that allow innocent animals to be unjustly mistreated and abused all over the world,' she added.
After being advised of the incident, Michelle Cho, the Vice President of The Humane Society of the United States, told Radar: 'Ke$ha apparently bought a piece of jewelry at a thrift shop and was unaware it was ivory.
'It is not uncommon for even the most dedicated animal lover to mistakenly buy ivory when they think it’s another material. Ke$ha, like other animal advocates, assures us she would never knowingly contribute to such a gruesome industry.'
The ivory trade has led to elephants and rhinoceros - along with other horned animals - being hunted to the brink of extinction.
Money from ivory sales has been linked to funding wars throughout Africa.
Apparently she didn't know it was ivory.