Award winning musician Prince will play a concert in Baltimore Sunday to promote peace following violent protests over the death of Freddie Gray. The concert is scheduled for 5 p.m. Sunday at the Royal Farms Arena, and will feature special as-yet unannounced guests. Tickets will go on sale Wednesday at 5 p.m. Concert attendees are being asked to wear something gray.

Prince has also recorded a new song in response to Gray's death and the protest. No release date has been set for the song.