Pop star Ke$Ha has applauded officials in Europe for banning the sale of animal-tested products, insisting she has "renewed faith in humanity".

The new law, which was supported by stars including Joanna Lumley and Chrissie Hynde, was introduced across the continent on Monday (11Mar13), and the Tik Tok hitmaker, who is a Global Ambassador for America's The Humane Society, has penned an open letter to voice her delight over the ruling.

In the note, she writes, "I am celebrating something wonderful, something compassionate and selfless that combines two of my great loves: cosmetics and animals. I can honestly say that today I have renewed faith in humanity. Eu (European Union) citizens showed their disgust at causing defenceless creatures pain and suffering for the sake of a new lip-liner or blusher, and their politicians listened and took action to change the world for the better.

"To care so deeply about the suffering of animals... demonstrates something beautiful about the human spirit. So that's why I'm writing this open letter to the global cosmetics industry, because beauty is supposed to symbolise something wonderful and pure and transformational... None of those things are true of animal testing. Animal testing is ugly - period.

"There can be no better time than this for the cosmetics industry to walk away from animal testing... when the world's largest cosmetics market has refused to sell cruelly-produced products. This is your moment to make the world a better, kinder, more beautiful place."