For celebrities, like Ben Stiller and Christine Taylor, events such as Wimbledon can be as much a social gathering as a sporting event.
The two do love watching tennis, but are often invited to sit with other interesting people. As seen above, the two happened to be right next to actor Sir Michael Caine.
Here are 20 celebrities you can expect to see at Wimbledon, whether they are serious fans or casual ones looking for something fun to do on vacation.
Sting definitely qualifies as one of Britain's top celebrities and has therefore made some appearances at one of England's favorite events.
The former lead singer of the police could be back for more action in the coming weeks.
The actor who played Gandalf and Magneto is pictured here at the ATP Tour finals match in London between Roger Federer and Novak Djokovic last November.
Sir Ian McKellen could watch tennis and get a chance to mingle with his knighted friends if he chooses to grace Wimbledon with his presence this year.
While The Hangover, Part II was bringing in over a hundred million dollars at the box office, Bradley Cooper was enjoying a well-deserved vacation in Paris, including a stop at the French Open.
Cooper has been around tennis for a couple of years now, playing in some celebrity exhibition matches. He appeared really engaged while watching the clay-court action at the French this year.
If he doesn't have too much going on, another trip to Europe could be in order for Cooper.
The U.S. Vogue editor is a big supporter of Roger Federer. She has traveled to see several of his matches overseas, including his epic victory over Novak Djokovic at the French Open earlier this month.
Wintour should be very excited to see Federer compete on his best surface as he makes a stand against Rafa Nadel and Djokovic.
January Jones and actress Rose Byrnes (pictured above) enjoyed spending time together at the ATP Tour Finals while Byrnes was taking a break filming X-Men: First Class.
The two saw Novak Djokovic and Roger Federer duke it out in London and Jones apparently loved it so much that she attended the BNP Paribas Open four months later.
If Jones brings Byrnes to Wimbledon this year, she might want to make sure that Sir Ian McKellen doesn't hold a grudge for actions committed against his younger self.
Dakota Fanning loved playing tennis when she was younger, but disliked dealing with the constant heat.
She appears to be handling the high temperatures just fine from the stands though, as she was present for the opening day of Wimbledon earlier this week.
The star of the 2004 comedy Wimbledon ought to at least pretend like she likes tennis.
She is an actress after all. It shouldn't be too difficult.
Here John Mayer is shown cheering for James Blake—his childhood friend—at the 2005 US Open.
Mayer has been known to enjoy a game of tennis and has frequented a couple of grand slams. He could very well be in the crowd this year and will be glad to have full use of both hands.
Ralph Lauren—Wimbledon's official outfitter—designs the apparel for all line judges and ball boys.
The head man Ralph Lauren himself has come in person to admire his work in the past and could do so again in 2011.
You can be sure that Sasha Vujacic—fiancé of current World No. 5 Maria Sharapova—will make an appearance at Wimbledon this year.
There's no Vegas Summer League to prepare for this year, so there's not much else that the New Jersey Nets guard has going on right now.
Shakira recently made a splash in the tennis world with her slightly promiscuous behavior towards Rafael Nadal.
The World No. 1 guest starred in the music video of the song Gypsy which includes quite a few shots of a shirtless Nadal cuddling with the Columbian Rock Star.
Shakira admits she is a big Nadal fan and has attended some of his matches in the past. A trip to London certainly would stir up speculation of a budding romance between the two.
Justin Timberlake has attended both the US Open and Wimbledon in the past two years, and could very well make a trip across the pond again this year.
JT might be looking to purchase a new hat for his collection, and there's no better spot to get one than at a fancy British event like Wimbledon.
It's hard to imagine what Brooklyn Decker sees in Andy Roddick.
Between his on-court temper tantrums, failure to ever win anything and snarky interviews after losing, Roddick doesn't exactly paint a very appealing picture of himself.
Regardless, while Federer and Nadal rack up the majors, Roddick can always smile to himself, knowing that they don't have a Sports Illustrated Swimsuit Model for a wife.
Rory McIlroy could get used to his current life.
The newly crowned US Open Champ has been invited to sit in the Royal Box at Wimbledon this year. He will enjoy the Royal Family's other favorite sport with some of the most prestigious members of British society.
Maybe his presence will motivate fellow UK product Andy Murray to put it all together and win his first grand slam on his home court.
Gavin Rossdale is himself an avid tennis player and competes on the celebrity circuit.
He and wife Gwen Stefani are friends of Roger Federer and often sit in his box to support him.
The two live part-time in London, and will likely be on-hand to watch Federer attempt to regain his former glory on his favorite surface.
After enjoying a successful career in music, Cliff Richard has spent the last two decades heavily engaged in philanthropy.
He started the Cliff Richard Tennis foundation in 1991 to bring tennis to primary schools around England.
Richard is one of England's more prolific musical celebrities and will certainly enjoy watching a couple matches of his favorite sport at the All England Club.
The couple have been sighted at several majors over the years, including Wimbledon last year.
Ben Stiller is an avid tennis fan, and Christine has taken well to her husband's passion—she now even sometimes goes to tournaments without Stiller.
Kate Middleton will once again attend one of her country's most storied events, but this time in a much more featured capacity.
The newly-crowned Duchess of Cambridge could take on an official role this year, potentially sharing trophy-presentation duties with the Duke of Kent.
Middleton loves everything about tennis. She is a strong player and regularly beats William on the court. She has seen many matches over the years at the All England Club most often with her mother.