Justin Bieber And Selena Gomez Wearing Matching Dog Tags //Necklaces

Justin Bieber and Selena Gomez have been spotted wearing matching necklaces, silver dog tags around their neck bearing the somewhat mysterious markings of ““xPoP.” 
What does it stand for? 


The tags are part of a campaign for the nonprofit organization Pencils of Promise, which builds schools in developing countries. Bieber has been a longtime supporter of the charity, which was founded by Adam Braun, the younger brother of his manager, Scooter Braun.


Source: www.justinbieberzone.com