Leonardo DiCaprio

The 'Titanic' director called 'MythBusters' 'full of sh---' and explained why both DiCaprio's Jack and Winslet's Rose couldn't have survived on the floatie.

The entire 'Growing Pains' cast attended Thicke's memorial, along with other celebrities like Alex Trebek, Bob Saget and more.

Rose McGowan, Leonardo DiCaprio, Susan Sarandon and more also celebrated on social media.

Celebrities like Shailene Woodley, Mark Ruffalo, Pharrell Williams and more have lent their support to the Standing Rock Sioux Tribe in opposing the controversial Dakota Access Pipeline.

Many celebrities are using their platform to support the Standing Rock Sioux Tribe and their protest against the construction of the Dakota Access Pipeline.

You can count actor Leonardo DiCaprio among the supporters of the Standing Rock Youth, who are attempting to stop the production of the Dakota Access Pipeline.

Kendrick Lamar, Adele and Caitlyn Jenner also made the list, which honors the most influential figures in the world.

Jennifer Lopez says that the Academy Award-winning actor was totally cool about the prank James Corden played on him from her cell phone.

See who showed up, and more importantly, what they were wearing.

Each year’s ceremony usually yields a handful of viral moments, little unexpected happenings that catch the public’s interest and make their way around social media platforms. Last year, the surprise selfie taken by host Ellen Degeneres quickly set Twitter ablaze, racking up millions of retweets and favorites in a matter of minutes. This year’s ceremony re-set that bar, with Leonardo DiCaprio’s long-awaited Best Actor win now the most-tweeted Oscar moment of all time.