![Watch the powerful gun violence PSA just released by JAY-Z and the NFL](https://mondrian.mashable.com/lead-img-jay-z-nfl-gun-violence-psa.png)
Team Roc, the charitable arm of JAY-Z's entertainment company Roc Nation, and the NFL have teamed up for a powerful gun violence PSA to remember the life of slain Chicago teen Hadiya Pendleton.
Pendleton's mother narrates the video, explaining how her daughter...