Annie Lennox has joined fellow recording artists Elton John and Alicia Keys in an effort to make a difference at the Washington AIDS Conference.

As scientists and political leaders continue try to work together to fight the pandemic, that’s now in its fourth decade, the British singer has spoken out about how the world might be at a crucial tipping point that could lead to an AIDS-free generation.

But speaking to James Chau in a special interview, she talks about the dangers if the world doesn’t seize the moment and push forward towards a solution.

You can watch the video here