The celebrity power continues into the final day of the Democratic National Convention in Philadelphia, with musical performances Thursday from legendary songwriter Carole King and current chart-topper Katy Perry, who rehearsed her new hit, "Rise."

Perry leads into the night's main attraction: presidential nominee Hillary Clinton's big moment on stage, with an introduction by daughter Chelsea Clinton.

Longtime Prince collaborator Sheila E. is also performing, and "Cheers" alum and activist Ted Danson will introduce a slate of speakers with his wife, actress Mary Steenburgen. The 19-year-old Chloe Grace Moretz, who recently mixed it up with Kim Kardashian on Twitter, is also appearing.

Across the Delaware River in Camden, New Jersey, earlier Thursday, Lady Gaga performed a jazzy version of Woody Guthrie's "This Land is Your Land," followed by Neil Young's "Old Man."

She was introduced by New Jersey Sen. Cory Booker, who spoke at the convention earlier in the week. He called Gaga a star who is not afraid to speak out about sexual violence and mental health.

Lenny Kravitz, who performed in the DNC hall Wednesday night, played a set at the Camden event, shouting: "We, the people. We, the people. We, the people." DJ Jazzy Jeff spun tunes between sets.

The show gave Camden, one of the country's most impoverished cities, time in the convention spotlight.

Earlier Thursday, Shonda Rhimes, the TV producer and writer who created "Grey's Anatomy" and "Scandal," addressed the Democratic women's caucus, describing Clinton as a "badass" she knows as a person as well as a politician.

"She's a mother who talks about her kid a little too much and like us, she personally worries too much," Rhimes said, according to BuzzFeed. "She's real and human and flawed, and funny, and dorky and interesting. She's a thousand times smarter than anyone you've met, but she's just like us."

Having spent personal time with Clinton, Rhimes heartily endorsed her: "Hillary gets it done. Hillary is squad goals, people."

On social media, Bradley Cooper took some heat from conservative fans of his performance as Navy SEAL Chris Kyle in 2014's "American Sniper." He was spotted in the DNC crowd Wednesday night, setting off some on Twitter.

Merchants online already have "Don't Boo, Vote" T-shirts for sale, meanwhile, reflecting what is sure to be a lasting tagline from President Barack Obama's DNC speech Wednesday night.

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Associated Press writer Maryclaire Dale in Camden, New Jersey, contributed to this report.