Mental illness affects one in every four people during their lifetime. And at any given moment, 450 million people are suffering, often in silence.

More common than you thought, right?

That’s why the BBC has launched its #1in4 campaign. On Twitter, Instagram, and other social media outlets, people are posting photos of themselves giving a four-fingered salute. This is to help spread awareness about mental health issues and to end the stigma often associated with them.

Scroll on to see which celebrities have tweeted their support so far, and maybe post a selfie yourself!

Sarah Silverman, comedian

Tom Hardy, actor

Kristen Bell, actress

David Tennant, actor

Russell Brand, comedian

Ella Henderson, singer

Louisa Johnson, singer

Olivia Colman, actress

Frankie Bridge, The Saturdays