Former President Obama and Michelle Obama are due to take the stage on Tuesday night at the United Center in Chicago, as Democrats continue to build enthusiasm for Kamala Harris’ campaign.

Celebrities including Spike Lee, Wendell Pierce, Sean Astin and Eva Longoria appeared for the state-by-state roll call vote earlier in the evening.

DJ Cassidy, who has performed at the Obamas’ birthday parties and at Jay-Z and Beyoncé’s wedding, kept things rolling with musical selections appropriate to each state, such as Prince for the Minnesota delegation and Kendrick Lamar for California. When Georgia was called, Lil Jon performed briefly from the convention floor.

Ana Navarro, a co-host on “The View,” acted as the celebrity host for the prime-time portion of the convention. She threw a dig at Trump for considering South Dakota Gov. Kristi Noem as his running mate, after it was revealed she shot her own dog.

“And you know what else? Kamala Harris, she likes dogs,” Navarro said. “And my dog Cha Cha likes her. Dogs are good judges of character, so are cats. We cannot elect a president who does not like dogs or hangs around with people who shoot them.”

While the roll call was underway in Chicago, Harris and her running mate, Tim Walz, were on stage holding a rally in Milwaukee. Once California Gov. Gavin Newsom cast the state’s votes for Harris, the convention cut to Harris in Milwaukee for a brief greeting.

Sen. Bernie Sanders also addressed the crowd, drawing applause when he called for a ceasefire in Gaza and a return of the hostages.

Senate Majority Leader Chuck Schumer attempted to bust a few moves to Bruno Mars’ “Uptown Funk” as he took the DNC stage. The New York Democrat warned the Democratic faithful that Harris’ defeat in November means being sentenced to “relive the dark night of Trump’s American carnage,” referring to Trump’s 2016 inauguration speech.

Jennifer Maas and Cynthia Littleton contributed to this report.