Arnold Schwarzenegger joins one of the world's richest men at a star-studded gala for cancer research


He's known as one of Hollywood's tough men but Arnold Schwarzenegger showed his softer side as made a surprise appearance at a charity event to raise money for cancer research.

The Terminator star and former governor of California was a guest at the Rebels Without a Cause gala inside a hangar at Santa Monica Airport in Los Angeles.

Oracle founder Larry Ellison, left, poses with Arnold Schwarzenegger at the Rebels With A Cause Gala at The Barker Hangar on Wednesday, May 11, 2016, in Santa Monica, Calif. (Chris Pizzello/AP)

The 68-year-old posed for photographs on the red carpet with one of the world's richest men, Larry Ellison, the founder of US computer giant Oracle, who is reportedly in talks to buy Aston Villa football club.

It was announced Ellison had donated US $200 million to the University of Southern California (USC) to fund a cancer research centre.

James Corden and wife Julia Carey pose at the Rebels With A Cause Gala in Los Angeles

British stars James Corden and Leona Lewis also attended the event, along with actresses Lily Tomlin and Jane Fonda, who are starring together in the Netflix series Grace and Frankie.

Leona Lewis

Actresses Jane Fonda and Lily Tomlin

The third biennial Rebels With a Cause gala raised money for ground-breaking medical research led by David B Agus, who founded the USC's Centre for Applied Molecular Medicine.