Last weekend, Dev Hynes promised a new song and today, he delivered with "Sandra's Smile." The song's title refers to Sandra Bland, an African-American woman who died in police custody while in a Texas jail over the summer. Some lyrics on the song reference Trayvon Martin's mother Sybrina Fulton, as well. Dev shared pictures of the lyrics in a notebook as well as next to pictures of both Sandra and Sybrina. 

Sandra's Smile.

— Devonté Hynes (@devhynes) October 27, 2015

Dev also shared a new self-directed video for the song featuring the Waffle Crew, Junglepussy and Ian Isiah. Along with the video, Dev announced a new concert "Blood Orange and Friends" that will take place at the Apollo Theater in Harlem on Dec. 12. Proceeds of the concert will go to the Opus 118 Harlem School of Music. Watch the new video above.

Playing music saved my life; if it wasn't for the chance to play cello or piano when I was a kid growing up in Essex, I shudder to think where I'd be right now. At this point in my life, all that matters to me is giving back to communities and making people happy, so I have decided to put on a fun night of performances at the legendary Apollo Theatre in Harlem that is hopefully affordable to all, with all proceeds going to the Opus 118 Harlem School of Music. New York City, let's have some fun!