[Photo by: Burger King/Youtube]

Burger King just released an ad in honor of National Bullying Prevention Month, and it's going to make you cry.

Read more: New Years Day’s Ash Costello and Attila’s Fronz reflect on bullying

The video begins with kids telling stories about being bullied, with stats that explain that bullying is currently the No. 1 act of violence against young people in the U.S. This is heartbreaking.

So, Burger King decided to hold an experiment: A High School Jr. and a Whopper Jr. are bullied to see which receives more complaints. See what happens in the video below.

Make sure you have enough tissues nearby before you press play:

It's a sad, but important message—and we hope it makes you think.

Watch more: Melanie Martinez opens up about overcoming bullying, finding confidence-watch