Leonardo DiCaprio keeps a low profile as he arrives early to his 49th birthday celebration with girlfriend Vittoria Ceretti and boyfriend Tobey Maguire

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Leonardo DiCaprio started his birthday early Friday evening in Santa Monica.

The Oscar winner, who turned 49 on Saturday, met his girlfriend Vittoria Ceretti and some of his famous fans for a party at celebrity hotspot Giorgio Baldi.

The Killers of the Flower Moon star was almost unrecognizable when he arrived at the Italian restaurant.

Dressed in black from head to toe, Leo stepped out in onyx sneakers and jeans, paired with a button-up shirt and zip-up jacket.

The Revenant star attempted to conceal his identity in a billed hat and black mask upon arrival.

Unrecognizable: Leonardo DiCaprio was almost unrecognizable when he arrived at Giorgio Baldi Italian restaurant in Santa Monica on Friday evening for an early 49th birthday celebration with friends

Vittoria, 25, looked relaxed in loose-fitting distressed jeans, a white one-shoulder ruffled blouse and an oversized black jacket.

The Italian model wore her hair in a low bun and her makeup looked natural with a soft peach lip.

The runway beauty accessorized with platinum earrings and a chunky platinum chain that resembled an ID bracelet.

Leo’s best friend Tobey Maguire, 48, was low-key in a black and green checked shirt with black cargo pants.

The Spider-Man star stepped out in white sneakers and a black LA hat.

They were joined by Tobey’s ex-wife, jewelry designer Jennifer Meyer, and her boyfriend Geoffrey Ogunlesi.

Jennifer, who shares children Ruby, 16, and Otis, 13, with Tobey, looked stylish but comfortable in high-waisted blue jeans, sandals and a white long-sleeved sweater.

She carried a small blue bag and tied her long blonde hair into loose curls.

Girlfriend: The Oscar winner was joined by his girlfriend, Vittoria Ceretti, 25, who looked relaxed in loose-fitting distressed jeans, a white one-shoulder ruffled blouse and an oversized black jacket

Girlfriend: The Oscar winner was joined by his girlfriend, Vittoria Ceretti, 25, who looked relaxed in loose-fitting distressed jeans, a white one-shoulder ruffled blouse and an oversized black jacket

Best friend: Leo's best friend Tobey Maguire, 48, was low-key in a black and green plaid shirt with black cargo pants.  The Spider-Man star stepped out in white sneakers and a black LA hat

Best friend: Leo’s best friend Tobey Maguire, 48, was low-key in a black and green plaid shirt with black cargo pants. The Spider-Man star stepped out in white sneakers and a black LA hat

Party guests: Also present at the party were Tobey's ex-wife Jennifer Meyer and her boyfriend Geoffrey Ogunlesi

Party guests: Also present at the party were Tobey’s ex-wife Jennifer Meyer and her boyfriend Geoffrey Ogunlesi

Dinner and drinks: The party was seen laughing and joking in the restaurant as they enjoyed a fun evening of food and drinks

Dinner and drinks: The party was seen laughing and joking in the restaurant as they enjoyed a fun evening of food and drinks

The group were seen laughing and joking in the restaurant as they enjoyed a fun evening of food and drinks.

Although the Titanic star rarely posts anything other than his environmental activism and film work on social media, that didn’t stop fans from sending their well wishes on Saturday.

“Happy birthday Leo” wrote many of his followers.

“Happy birthday, handsome,” wrote another. “And thank you again for doing all you can for just one man, to help heal our world.”