At least 10 people faced felony drug charges Sunday related to Lollapalooza in Cook County Bond Court, including a Chicago man prosecutors say was carrying more than 150 pills of MDMA, also known as Ecstasy.
Sean Magee, 24, Anthony Nelson, 24, and Dylan Horach, 18, are each charged with possession of a controlled substance.
Police say they caught Magee dealing drugs at the festival and found him carrying more than 150-ecstasy pills and small bags of marijuana.
Nelson was arrested after shouting a slang term for ecstasy. He had 27-pills on him.
Horach was caught hopping a fence on Saturday.
Court records show he had heroin and LSD in his possession.
Chicago Tribune contributed to this report