John Legend and Common accepted the Oscar for best original song at the 87th Academy Awards at the Dolby Theatre in Hollywood on Sunday night.
Selma's "Glory" won following a performance by the two musicians that received a tearful standing ovation from audience members including producer Oprah Winfrey, director Ava DuVernay, star David Oyelowo and Chris Pine.
During the musicians' acceptance speech, Legend compared the number of black men incarcerated in the United States today with the number of men in slavery in the mid-1800s.
"There are more black men under correctional control today than were under slavery in 1850," Legend said in his acceptance speech. "March on, and God bless."