Leonardo DiCaprio attends a game between the Denver Nuggets and the Los Angeles Lakers in the second half during game four of the Western Confe

Leonardo DiCaprio made his Met Gala debut on Monday night -- behind closed doors. The actor was photographed at the gala by Vogue, the organizers of the annual affair, walking beside supermodel Vittoria Ceretti while shielding his face from photographers. Vogue reported that it was DiCaprio's first time attending the event.

While the “Wolf of Wall Street” actor, 50, attempted to fly under the radar, he was caught on camera with his 26-year-old partner Monday.