Justin Bieber is officially a spokesperson for the new film "BULLY," a documentary on the prevalence and effects of bullying in U.S. schools. Justin joins a host of celebrities supporting the film and its campaign to take action on bullying including: Ellen Degeneres, Meryl Streep, Victoria Justice, Andersoon Cooper and Kelly Ripa.

“My fans are always up for supporting a great cause. It’s one of the things I’m most proud of as an entertainer,” said Bieber. “I hope they see BULLY with their friends and help start the conversation so we can end bullying.” Watch the Biebs' promo for "BULLY."

This year, 13 million students will be bullied and 3 million will be absent because they don't feel safe at school. Learn more about The Bully Project here.