Josh Groban and Jennifer Hudson Light Up the Stage at the Carousel of Hope Ball

Over the weekend, a star-studded crowd gathered at the Beverly Hilton in Beverly Hills, Calif., for the 2014 Mercedes-Benz Carousel of Hope Ball to raise funds for clinical care and research at the Barbara Davis Center for Diabetes.

The evening kicked off with cocktails and a silent auction as guests—including Kat Dennings, Anjelica Huston, Diane Keaton, Bellamy Young, Candace Cameron Bure, Karina Smirnoff, Larry King, Raquel Welch, and Suzanne Somers—mixed and mingled before Magic Johnson received the prestigious Brass Ring Award for his various humanitarian efforts. "The work that the Barbara Davis Center for Diabetes is doing is amazing," Johnson tells InStyle. "They're saving a lot of people's lives. It's just a blessing to be recognized."

Later, attendees enjoyed a delicious meal in the carousel-themed ballroom as well as the comedic stylings of the event's host, Jay Leno, prior to the real the highlight—performances from Jennifer Hudson, Josh Groban, and Kenneth "Babyface" Edmonds. "If I could perform in a hoodie and Converse, I really, really would, but a tux is more suitable for this amazing event," Groban says. "Tonight during my performance, I wanted to do a mix of stuff that I thought would be right for the message of the evening, which is to raise funds and awareness for this incredible cause."

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—With reporting by Carita Rizzo