Hollywood's Biggest Stars Come Out For the 'Oscars of Science'

The biggest names in Hollywood came out for the Oscars Saturday night, but not the Oscars you're thinking about.

It was the 12th annual Breakthrough Prize ceremony -- also known as the “Oscars of Science” -- which drew a boatload of A-listers such as Anne Hathaway, Robert Downey Jr., Zoe Saldana, Ben Affleck, Paris Hilton, Margot Robbie, Lionel Richie, Michelle Yeoh, Rob Lowe, John Legend and Chrissy Teigen.

The list didn't stop there. You also had Jessica Chastain, Christina Aguilera, Gal Gadot, Ron Howard, Olivia Wilde, Jewel, Lily Collins, Gigi Hadid, Edward Norton, Michelle Williams, Darren Aronofsky, Salma Hayek, Naomi Watts, Billy Crudup, and François-Henri Pinault.

All the stars were chatting and posing for pics on the red carpet before taking their seats at the Barker Hangar in Santa Monica, California.