Drake, Nicki Minaj, Justin Timberlake and will.i.am react to US police shootings

Celebrities have been reacting to the recent police shootings of black men in America.

On Tuesday a video emerged showing two white police officers holding down and shooting Alton Sterling in Louisiana.

Drake, Nicki Minaj, Justin Timberlake and will.i.am react to US police shootings

The following day another video - which was live streamed on Facebook - claimed to show the aftermath of police shooting Philando Castile in his car in Minnesota.

It's sparked debate about police brutality in the US.

It's called Spiritual. He raps that he's "saddened and disappointed in THIS America - we should be further along". Chris Brown, Solange Knowles and Swizz Beatz have also released tracks.