Leonardo DiCaprio knows how to throw a party – with purpose!

The actor celebrated his 38th birthday on Saturday in the name of charity.

Beyoncé Jay-Z, Cameron Diaz and Emma Watson were among the guests at the Wolf of Wall Street actor's birthday festivities at The Darby in New York.

The event raised money for the Leonardo DiCaprio Foundation and the charities it supports, which include direct donations to Superstorm Sandy relief.

Live performances by Gary Clark Jr. and ELEW kept guests – including Martin Scorsese, Robert De Niro, Chris Rock, Edward Norton, Jonah Hill and Jamie Foxx – on their feet throughout the evening.

Ultimately, the bash raised $500,000 for the American Red Cross.

– Carlos Greer & Debra Lewis

Joined by five pals, Leonardo DiCaprio and Tobey Maguire managed to build in some bonding time on Saturday night in Las Vegas.

The actors stopped by Cut inside the Palazzo hotel for dinner.

Maguire, who requested vegan items, was brought corn salad, tomato salad and butter lettuce. He was also given fingerling potatoes, squash, romano beans and sautéed spinach.

DiCaprio, on the other hand, joined in with the rest of the party and ate steak with a few sides.

Maguire "only drank water," a source tells PEOPLE, while pal DiCaprio sipped on a Raspberry Velvet cocktail made with Grey Goose.
– Mark Gray

Not known to purposely draw attention to himself, Leonardo DiCaprio once again headed out to Hollywood looking almost unrecognizable.

Sporting his signature baseball cap at Lure nightclub, the actor also displayed a full, grown-out beard, which could be for his upcoming role in Django Unchained.

According to an onlooker, DiCaprio showed up with a big group of people, including former Entourage star, Kevin Connolly.

Also showing up with a handful of folks on the same night was Amanda Seyfried, who seemed to be "enjoying herself," the source tells PEOPLE, adding, "She was dancing and sat at one of the cabanas on the patio."
– Jennifer Garcia and Dahvi Shira

Leonardo DiCaprio and four gallery-hopping buddies were spotted scarfing down pizzas at Ovest Pizzoteca in New York after scoping out the art at the adjacent Paul Kasmin Gallery. The group sat in the front bar area, and the J. Edgar star stayed casual in a navy ball cap as he watched the chef hand toss the pizzas. The group devoured three pies in under five minutes – then opted for seconds on a pizza with cherry tomatoes, mozzarella and fresh basil. – Kristin Boehm

Leonardo DiCaprio, who stars in the upcoming Great Gatsby adaption, was one of many celebrity revelers at a Gatsby-themed bash at L.A.'s Trousdale Lounge. The soiree was a birthday party for filmmaker Brett Gursky, and DiCaprio hung out with his usual posse of guys: Lukas Haas, Kevin Connolly and Jerry Ferrara. Meanwhile, Kristin Cavallari was the life of the party, bouncing from group to group. The recent Dancing with the Stars contestant was also soaking up male attention. "She was in a very bubbly mood and used her time to let go and have some fun," a partygoer tells us. Also there: Chris Evans and Mark Salling. – Jennifer Garcia