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Steven Spielberg -

Steven Spielberg at the 'Indiana Jones and the Kingdom of the Crystal Skull' 2008 press conference in Beverly Hills. The legendary director's baseball cap sports the Brown University emblem.

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Bruce Willis -

Bruce Willis is another A-lister who likes to pull a baseball cap over his head. The actor is seen arriving for the 2005 Los Angeles premiere of 'Sin City.'

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Antonio Banderas -

Spanish heartthrob Antonio Banderas looking rather intense under his cap during the 2002 'Spy Kids 2: The Island of Lost Dreams' press conference in Beverly Hills. His hat reads "Mini espías," which is the title of 'Spy Kids' in Spanish.

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Bradley Cooper -

A beaming Bradley Cooper attends the 2010 world premiere of 'When in Rome' in Los Angeles.

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Will Smith -

Will Smith looking cool and relaxed at Ozzfest in Mountain View, California, in 2005. Naturally this Philly boy is wearing a 76ers cap, a team which he and his wife are part owners of.

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Eva Longoria -

Eva Longoria is all smiles in a trucker cap as she attends the Rally for Kids with Cancer "Start Your Engines Brunch" in California in 2009.

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Prince William -

Prince William, seen here back in 2008 as a 26-year-old, obviously having fun as a member of the crew of HMS Iron Duke during his Royal Navy training in Montserrat. The cap is a Royal Navy issue.

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Jeff Bridges -

Jeff Bridges, shown wearing a red baseball cap and a black and red plaid shirt, poses for a photograph on the set of 'Starman' (1984).

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Leonardo DiCaprio -

A cap for DiCaprio! No mistaking who he's rooting for during the Los Angeles Lakers vs Portland Trail Blazers game at the Staples Center on October 28, 2008 in Los Angeles, California.

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Jennifer Lopez -

Jennifer Lopez spots the camera while attending a game between the New York Mets and the New York Yankees at Shea Stadium in Queens, New York, in 2005. More than a decade later she would become engaged to (and then split from) former Yankees' star Alex Rodriguez. And, interestingly, both were interested in obtaining an ownership share of the Mets.

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Denzel Washington -

The New York Yankees baseball cap is one of the most popular caps in the world. Here Denzel Washington sports one during the 'Antwone Fisher' press conference in Beverly Hills, in 2002.

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Tom Hanks -

Dressed down for the occasion and  looking relaxed and casual is Tom Hanks as he attends the 2006 Public Theater's Annual Gala Opening Night of 'Macbeth' in New York City.

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Beyoncé -

Curls tumble from under a fresh-faced Beyoncé's baseball cap as the singer attends the 2002 MTV Spankin' New Music Week in New York City.

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Kevin Costner -

Kevin Costner's headwear promotes the Coast Guard Air Station Elizabeth City, which makes sense as the actor appeared as a US coastguard rescue swimmer in the 2006 movie 'The Guardian.'

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Paul Newman (1925–2008) -

Besides being one of cinema's most iconic actors, Paul Newman was a huge motorsports fan. He's seen here at the 1993 Indianapolis 500. Newman's baseball cap is promoting the Texaco-Havoline Lola race car, which the actor co-owned.

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Samuel L. Jackson -

Samuel L. Jackson often wears a baseball cap as an accessory to his casual wardrobe. The actor is seen here attending the premiere of 'In My Country' at the Beekman Theatre in New York in 2005. The landmark art house venue closed permanently in 2005, and was later demolished.

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Madonna -

An embroidered denim baseball cap crowns an all-blue Madonna, sighted on the set of the movie 'W.E.' in New York in 2010. The singing star wrote, produced, and directed the romantic drama, which revolves around the story of King Edward VIII's abdication of the British throne so that he could marry his American sweetheart, Wallace Simpson.

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Pharrell Williams -

Pharrell Williams in characteristic attire at the MTV Europe Music Awards in Barcelona in November 2002.

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James Caan -

James Caan turns up to the Los Angeles premiere of 'Bee Movie' in 2007 wearing a Von Dutch trucker cap, headwear the apparel brand is famous for.

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Miley Cyrus -

Baseball caps have become de rigueur for many a music artist, including Miley Cyrus, seen here performing at the Glastonbury Festival in England in 2019.

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Spike Lee -

When in New York... filmmaker Spike Lee wearing his customary red New York Yankees baseball cap while attending a fashion show in the city in 1998.

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Morgan Freeman -

Morgan Freeman leaves the Ivy Restaurant in Beverly Hills, California. It was 2002, the same year he appeared in 'The Sum of All Fears' with Ben Affleck.

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Danny DeVito -

There's nothing like a bit of self-promotion, and here's Danny DeVito wearing a baseball cap for his film 'Matilda' (1996), which he not only directed but produced and also appeared in.

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Ice Cube -

Rapper, actor, and filmmaker Ice Cube attends the premiere of the remake of 'The Amityville Horror' in Los Angeles in 2005.

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50 Cent -

Rapper and actor 50 Cent wearing his New York Yankees' cap they way it should be during a 2003 gig in the Big Apple.

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Dorothy Lamour (1914–1996) and Jane Russell (1921–2011) -

Actresses Dorothy Lamour (left) and Jane Russell during a celebrity baseball game, around 1947. Lamour was on a roll that year, starring in no less than four movies: 'My Favorite Brunette,' 'Wild Harvest,' 'Road to Rio,' and 'Variety Girl.' Russell, meanwhile, was at the height of her fame as one of Hollywood's leading sex symbols. 

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Katharine Hepburn (1907–2003) -

This informal 1950 portrait of Katharine Hepburn, who won four Academy Awards for Best Actress—still a record for any performer—wearing a baseball cap.

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Shirley Temple (1928–2014) -

A precocious-looking Shirley Temple wearing a full print pattern dress and a baseball cap, posing with her hands on her hips in a garden, around 1935.

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John Wayne (1907–1979) -

In 1977, the "Duke" was guest of honor at his former university, the University of Southern California, and enjoyed a front row seat at the third USC superstar celebrity baseball game. He, of course, wore a USC baseball cap. The actor died two years later, aged 72.

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Ann-Margret -

Using a baseball cap as a comic prop, Swedish-American actress Ann-Margret is seen here in 1960. The following year she won the Golden Globe Award for New Star of the Year – Actress for her performance in 'Pocketful of Miracles.'

Sources: (Vogue)

See also: Which celeb looks best in a tux?

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