All In! to #EndAdolescentAIDS is a platform for action and collaboration to inspire a social movement to drive better results with and for adolescents through critical changes in programmes and policy. It aims to unite actors across relevant sectors in order to accelerate reductions in AIDS-related deaths and new HIV infections among adolescents by 2020 as part of the global push to end the AIDS epidemic for all by 2030. All In to #EndAdolescentAIDS is convened by a leadership group that includes the United Nations Children’s Fund (UNICEF), the Joint United Nations Programme on HIV/AIDS (UNAIDS), the United Nations Population Fund (UNFPA), the World Health Organization (WHO), the United States President’s Emergency Plan for AIDS Relief (PEPFAR), the Global Fund to Fight AIDS, Tuberculosis and Malaria (Global Fund), the MTV Staying Alive Foundation, and the adolescent and youth movement represented the HIV Young Leaders Fund/the PACT and Y+.