International Labor Organization (ILO) started The Red Card campaign in 2002.
In 2014, ILO composed a theme song. The theme song for this campaign was called 'Till Everyone Can See, and it gathered several famous artists including: Travis Barker, Minh Dang, Dominic Lewis, LIZ, Pharrell Williams, and Hans Zimmer
A red card is used in a lot of sports to represent the player is our of the game. Therefore, ILO uses this symbol to raise awareness.
Several artists, athletes and even presidents have joined in the campaign.
In 2002, the soccer team, Real Madrid joined in the campaign.
Summarizing the campaign in a website
https://www.youtube.com/watch?v=qHNgfStLwNc&ab_channel=InternationalLabourOrganization
https://www.ilo.org/global/about-the-ilo/artworks/take-action/WCMS_191210/lang--en/index.htm
https://www.ilo.org/global/about-the-ilo/artworks/topics/child-labour/artists/lang--en/index.htm
https://www.youtube.com/watch?v=Iqn1ruwzhXo&ab_channel=InternationalLabourOrganization
https://www.ilo.org/global/about-the-ilo/artworks/topics/child-labour/artists/lang--en/index.htm