Beyonce & Jay Z attended peace concert on Mother's Day

Beyonce and Jay Z spent Mother's Day (10May15) with the families of slain Freddie Gray and Mike Brown at the Rally 4 Peace concert in Baltimore, Maryland.

The concert, which was streamed on Jay Z's new Tidal pay-to-play website, was staged in a bid to bring peace to the city after weeks of unrest and protest.

Gray died in police custody in April (15), while Brown was fatally shot last year (14) by a Ferguson, Missouri police officer. Both deaths led to violent protests.

The concert featured a performance from Prince.

Beyonce's newly-married mum, Tina Knowles, also attended the peace concert.