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Lester Cohen/Getty Images for City of Hope
Alicia Keys and Sara Bareilles
The singers take the stage together.
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Lester Cohen/Getty Images for City of Hope
Meghan Trainor and Daryl Sabara
The singer and actor clap for the performers.
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Gabriel Olsen/WireImage
DJ Khaled
The music star is all smiles.
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Charley Gallay/Getty Images for City of Hope
Eric Holder and Forest Whitaker
The former Attorney General poses with the actor.
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Paul Archuleta/FilmMagic
Zara Larsson
The Swedish singer poses for the cameras.
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Joe Scarnici/Getty Images for City of Hope
Jimmy Jam
The songwriter and producer speaks onstage.