In October 2015, Usher partnered with the organization Sankofa which focuses on issues of social injustice that disproportionately affect the disenfranchised, the oppressed, and the underserved. On October 23, 2015, Usher and the founder of Sankofa, former Civil Rights Activist, Harry Belafonte led the conversation titled "Breaking the Chains of Social Injustice" at 92nd Street Y in Manhattan speaking about popular culture and activism. At this panel he introduced his music video "Chains" featuring Nas and Bibi Bourelly. The music video is geared towards facing the issues of social Injustice and features images of Trayvon Martin, Rekia Boyd, Sean Bell, Marlon Brown, Ramarley Graham, Amadou Diallo, Caesar Cruz and other recent victims of police violence.