By Dana Rose Falcone
Updated May 12, 2015 at 07:03 PM EDT

While attending Prince’s Rally 4 Peace concert in Baltimore last Sunday, photos from an Instagram fan page for Beyoncé suggest that Beyoncé and Jay Z took some time to meet the family members of Freddie Gray, the 25-year-old who died in police custody last month.

Tidal, Jay Z’s music streaming service, streamed the concert, and Prince performed protest song “Baltimore,” which he wrote in response to the unrest in Baltimore following Gray’s death.

Alicia Keys also joined Beyoncé for a photo-op with the mother of Michael Brown, the 18-year-old shot and killed by a police officer in Ferguson, Missouri, in August.

A representative for Beyoncé did not immediately respond to EW‘s request for comment.