The event, on the eve of the California primary, will raise money for the Hillary Victory Fund, a joint committee of the Clinton campaign, the Democratic National Committee and state party committees.
A campaign aide said that the “She’s With Us” event will “bring attention to important issues impacting families,” including criminal justice reform, gun violence prevention, immigration, women’s social and economic equality, and climate change.
The Hillary Victory Fund held a concert in New York in March featuring Katy Perry, Elton John and Day.
Clinton also will be in Los Angeles on May 23 for a fundraiser at the home of Bryan Lourd and Bruce Bozzi. The event will raise money for her campaign.