Leonardo DiCaprio, 49, keeps a low-key profile in mask as he arrives with girlfriend Vittoria Ceretti, 25, at Robert De Niro’s Q&A during Art Basel in Miami

Leonardo DiCaprio kept it low key on Saturday during an outing with girlfriend Vittoria Ceretti in Miami Beach, Florida.

The 49-year-old actor wore a face mask and baseball cap as he attended Robert De Niro's Q&A during Art Basel with his 25-year-old girlfriend.

He also presented himself casually in a dark ensemble with a stylish bomber jacket, a classic T-shirt and comfortable trousers.

To match his otherwise all-black look, he wore a pair of white sneakers.

The Titanic alum opted for a nearly identical ensemble as she enjoyed drinks with the Italian model at the annual arts festival the night before.

Leonardo DiCaprio kept it low key on Saturday during an outing with girlfriend Vittoria Ceretti in Miami Beach, Florida

Leonardo DiCaprio kept it low key on Saturday during an outing with girlfriend Vittoria Ceretti in Miami Beach, Florida

Walking one step behind with their friends, Ceretti looked stunning in a white long-sleeved top paired with a patterned satin midi skirt.

She paired her cream skirt with a slouchy leather shoulder bag and also wore a pair of black Adidas sneakers.

This comes just days after he made his annual trip to Art Basel and was spotted arriving at the Miami Beach Convention Center on Wednesday without his new girlfriend by his side.

But the month before, Ceretti was spotted by his side as he celebrated his 49th birthday with a star-studded bash in Beverly Hills.

The soiree drew a large audience from all corners of Hollywood, from movies, music and even reality television.

At the party, he even rapped a 1994 song DWYCK by Gang Starr and Nice & Smooth and danced for the crowd of famous partygoers.

He was also hoisted onto a chair at one point during his birthday party.

During his November Good Morning America interview, he revealed a goal he wants to achieve before he turns 50 next year.

The 49-year-old actor wore a face mask and baseball cap as he attended Robert De Niro's Q&A during Art Basel with his 25-year-old girlfriend.  He also presented himself casually in a dark ensemble with a stylish bomber jacket, a classic T-shirt and comfortable trousers

The 49-year-old actor wore a face mask and baseball cap as he attended Robert De Niro's Q&A during Art Basel with his 25-year-old girlfriend. He also presented himself casually in a dark ensemble with a stylish bomber jacket, a classic T-shirt and comfortable trousers

Ceretti was one step behind with their friends, looking stunning in a white long-sleeved top paired with a patterned satin midi skirt.

Ceretti was one step behind with their friends, looking stunning in a white long-sleeved top paired with a patterned satin midi skirt.

He sat in a white lawn chair as Robert spoke to the crowd

He sat in a white lawn chair as Robert spoke to the crowd

He had on a black face mask that he held under his chin

He had on a black face mask that he held under his chin

Last month, DailyMail.com exclusively reported that DiCaprio is

Last month, DailyMail.com exclusively reported that DiCaprio is “crazy about” Ceretti and has fully committed to their relationship; seen in November

He told the host that he wants to film “one more movie.”

Last month, DailyMail.com exclusively reported that DiCaprio is “crazy about” Ceretti and has fully committed to their relationship.

“Leo is crazy about Vittoria and finds every aspect of her intriguing,” a source revealed in early November.

“He likes where this is going and he's only seeing her now,” the insider added.

“She is very intelligent and has all the qualities he looks for in a partner,” they continued.

Ceretti has been named Italy's top model by Vogue and is also an environmental activist.

The pair first became romantically linked when they were spotted out for ice cream in August.

They were reportedly introduced at the Cannes Film Festival in May.