Pop star Kesha is backing U.S. lawmakers as they attempt to pass a bill banning the sale of animal-tested cosmetics.

The Timber hitmaker has created a Public Service Announcement (PSA) on behalf of The Humane Society of the United States (HSUS) as part of their new #BeCrueltyFree campaign.

The movement aims to raise awareness and support of a federal bill called the Humane Cosmetics Act, which will phase out animal testing for cosmetics if it is made law.

In a video for the campaign, Kesha is seen getting ready for a night out, and as she is putting on her make-up, a number of furry white rabbits surround her. As she leaves her home, a title card reads, "Does animal testing lurk behind your cosmetics? It doesn't have to."

Kesha also released a statement of support, which reads, "Once I was educated about the hidden cruelties that lurk behind some cosmetic products companies, I knew I had to take action and do everything in my power to end this inhumane practice of testing our cosmetics on animals... Congress has introduced The Humane Cosmetics Act, a bill to end cosmetics testing on animals in the United States. But even now it's easy to avoid buying cosmetics tested on animals by only buying cruelty free products...

"My hope is that with the help of the HSUS's #BeCrueltyFree campaign, we can ignite a cruelty-free revolution and that the United States and other countries join the 30+ others who have already banned egregious cosmetic animal tests."