Tidal may not have as many subscribers as its streaming music rivals Spotify and Rdio, but it's got one thing those services don't: A live concert from funk legend Prince. 

The music subsciption service announced on Friday that it will stream the audio from a 60-minute live concert taking place at Baltimore's Royal Farms Arena on Sunday. The show will include the debut of a new protest song called "Baltimore" that Prince wrote in response to 25-year old Freddie Gray's death and the subsequent civil unrest it sparked. 

You can stream the concert even if you don't have a Tidal subscription. However, Tidal is collecting donations on its website which it plans to give to various Baltimore charities. 

Tidal might be in trouble in a crowded and competitive market. A recent report indicated that its parent company, Aspiro, doesn't have enough money to survive for the next 12 months. If the Jay Z backed service is to succeed, it needs to provide something that Spotify and Rdio can't. Considering Tidal's big-name celebrity backing, exclusive content and concerts might be the ticket to a larger subscriber base.

After the Prince concert, Tidal will exclusively stream a Jay Z concert on May 16, where the rapper will play rarely-performed songs from his back catalog. Unlike Prince's gig, though, you'll need to be a Tidal subscriber to listen in.