Wedding crashers are generally thought to be an annoyance. Unless, of course, that crasher is Brad Pitt.
On Friday, UK bride Abi Lingwood got a big Big Day surprise when her husband Daniel told her that he spotted the actor at the bar of the Stoke Park Hotel in Buckinghamshire, where they were holding their wedding reception.
"My husband said to me that Brad Pitt was at the bar and you have got to come with me so he dragged me across the hotel. I thought he was joking," she told the Maidenhead Advertiser.
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Pitt was in town filming the World War II thriller "Fury" at the nearby Pinewood Studios and was at the hotel for a business meeting.
Lingwood told E! that she "actually gasped and said to [her]self, 'Oh my god, it really is you!'" when she finally met the actor.
"He congratulated us on our wedding said I looked great in my dress, shook our hands and said to pose for a picture. He was very accommodating," she said.
The bride also told E! that it isn't quite accurate to call Pitt a wedding crasher.
"The papers at home are saying that Brad crashed our wedding reception, but to be fair, we crashed their meeting!" she explained.
Click through the slideshow below for more celebrity wedding crashers.
Teen heartthrob Justin Bieber and then-girlfriend Selena Gomez were strolling on the beach in Malibu, Calif. in July 2011 when they heard Bieber's hit song "One Less Lonely Girl" playing at a local wedding reception. According to TMZ, the famous pair snuck up on some guests and then got on the mic to give the newlyweds a toast. "We just crashed it. We heard a party so we decided to just come. So let's party," Bieber said in an exclusive video.
When Freya and Graham McAnally got married at the Manchester Town Hall in England in December 2011, they knew that cameras were nearby filming "The Iron Lady" starring Meryl Streep. But what they didn't know is that Streep would show up at their wedding. According to The Daily Mail, the Oscar-winning actress made an appearance at the couple's nuptials, then sent them autographed photos of herself bearing messages of congratulations. "I thought it was amazing, the last thing you expect is an A-List celebrity at your wedding," the bride said.
Believe it or not, royals crash weddings sometimes too. In March 2012, Queen Elizabeth showed up at John and Frances Canning's Manchester, England wedding and completely shocked the couple, who had invited her but never really expected her to actually attend. "Basically it was a wedding gift for us," the bride told CNN affiliate ITN.
In September 2008, "Entourage" actor Adrian Grenier accidentally walked into a wedding while leaving the Ritz-Carlton's spa in Marina del Rey, Calif. But according to the New York Daily News, no one really seemed to mind. In fact, some guests were all too eager to take some snapshots with the actor.
John Travolta and Robin Williams once crashed a wedding together, but it was long before the two were big in Hollywood. According to USA Today, the friends had stopped to get a drink near Travolta's Santa Barbara home back in 1977. After a few drinks, "We were having fun, starting to relax, when we saw there was a wedding next door," Travolta told USA Today in 2009. "We figured we'd crash it."
In April 2013, comedian Conan O'Brien crashed an Atlanta couple's wedding. A friend of the couple had been tweeting at O'Brien all day, inviting him to the wedding -- and he actually showed up! At left, O'Brien is pictured with the bride.