By Christopher Rosen
Updated May 17, 2015 at 03:57 PM EDT
Jason LaVeris/FilmMagic

Jay Z performed the first of two special B-sides concerts for Tidal fans on Saturday night in New York, and took shots at the streaming service’s competition during a particularly strong freestyle.

The freestyle, which can be seen in the video below, also included references to YouTube and the deaths of Freddie Gray, Trayvon Martin and Michael Brown.

Tidal has been criticized since its highly publicized launch back in March. Last month, Jay Z responded to the many complaints about the service in a series of tweets he hashtagged #TidalFacts.