Variety noted most of the artists on the bill were former collaborators of the late disc jockey and recording artist Avicii.
Produced by the Tim Bergling Foundation, the show will raise money for organizations that address mental health needs and support suicide prevention.
Avicii -- whose real name was Tim Bergling -- died of an apparent suicide in April 2018 at the age of 28.
"He really struggled with thoughts about Meaning, Life and Happiness," his family said in statement at the time. "He could not go on any longer. He wanted to find peace."