Instructions: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Input: Image copyright AP Image caption Rihanna was in Nice at the time of Thursday's attack 
  
 Singer Rihanna has cancelled a concert in Nice in the wake of the Bastille Day attack that left at least 84 dead. 
  
 The pop star wrote on Instagram her gig on Friday at the city's Allianz Stadium "would not be going ahead as planned... due to the tragic events". 
  
 The Nice Jazz Festival, due to start on Saturday, has also been cancelled. 
  
 Many figures from the entertainment world have expressed shock at the news, with Simon Cowell among those sending "thoughts and prayers to all affected". 
  
 Rihanna, currently in Europe with her Anti tour, was in Nice at the time of the attack but was said to be "safe" by her representative. 
  
 The makers of the sequel to Fifty Shades of Grey - which had been filming on location in the south of France - also said everyone working on the film had been accounted for and was "safe and sound". 
  
 Producer Dana Brunetti circulated the statement on Facebook, saying it was "another sad day for France and the world". 
  
 Boy George tweeted his "heart breaks for France", while Cyndi Lauper said she was "so sad for the people of Nice". 
  
 Image copyright Cyndi Lauper/Twitter 
  
 Comedian Amy Schumer, actress Mia Farrow and TV personality Kim Kardashian West are among others to express their sympathies. 
  
 At least 84 people were killed when a lorry ploughed through a crowd during Bastille Day celebrations in Nice on Thursday evening. 
  
 The driver drove 2km down the city's Promenade des Anglais at about 23:00 local time, before being shot dead by police. 
  
 Youssou N'Dour, Melody Gardot and Britain's Laura Mvula were among those who had been scheduled to appear at Nice's Jazz Festival. 
  
 The event was to have run from Saturday to Wednesday but has now been cancelled, as have some of the city's other Bastille celebrations this weekend. 
  
 Festival organisers told the BBC all tickets would be refunded and thanked ticket holders "for their understanding". 
  
 Image copyright Getty Images Image caption Laura Mvula had been scheduled to perform at the Nice Jazz Festival on Monday 
  
 US singer George Clinton, who had been due to perform at the festival on Sunday, sent his "sincere condolences and prayers to the families of the victims". 
  
 London-based rapper Tiggs Da Author, who was also scheduled to appear on Sunday, is another performer to have sent "thoughts and prayers" via Twitter. 
  
 Thursday's events have cast doubt on whether Bastille Day, an action thriller starring Britain's Idris Elba, will continue to be shown in French cinemas. 
  
 A spokesperson for distributor StudioCanal told the BBC it would let cinemas decide whether to show the film and would support them if they chose to withdraw it. 
  
 The UK release of the film - which features a bomb blast in central Paris - was put back two months to 22 April following the terror attacks that took place in the city in November last year. 
  
 Follow us on Twitter @BBCNewsEnts, on Instagram at bbcnewsents, or email entertainment.news@bbc.co.uk. ||||| Rihanna In Nice During Terror Attack 
  
 Rihanna in Nice During Terror Attack 
  
 EXCLUSIVE 
  
 7:30 PM PT -- Rihanna's concert has been cancelled, along with a jazz festival that was scheduled to begin Saturday in Nice. 
  
 Rihanna was in Nice -- preparing for a concert -- when a terrorist shot and drove over more than 80 people ... TMZ has learned. 
  
 Rihanna is scheduled to perform in the French city on Friday night, but that's all up in the air in the wake of Thursday's tragedy ... where a man drove a huge truck through Bastille Day crowds celebrating France's independence. 
  
 He also opened fire on civilians and police before he was taken out. 
  
 Our sources say Rihanna's people are trying to get her out of the city ASAP, out of an abundance of caution. 
  
 It's unclear if her show at Nice's Allianz Riviera Stadium will go on as planned. ||||| Get celebs updates directly to your inbox + Subscribe Thank you for subscribing! Could not subscribe, try again later Invalid Email 
  
 The cast and crew of the sequel to Fifty Shades of Grey are 'safe' amid the horrific terrorist attack that has left 84 people dead in Nice, it has been confirmed. 
  
 The sequel has been filming in Nice, France where on Thursday night a truck armed with explosives killed 84 people and injured many more after plowing through a crowded Bastille Day celebration. 
  
 The Fifty Shades Darker cast and crew are safe and accounted for, with producer Dana Brunetti confirming on social media. 
  
 "As far as I know everyone from our cast and crew is safe. Thanks for everyone's concern," he tweeted. 
  
 "Back safe in my hotel room. Thanks for everyone's concern and messages." 
  
 While the book's author E.L. James wrote: “Just heard about the horrendous events in Nice. Appalling. Thoughts are with the families of the dead and injured.” 
  
 (Photo: Splash) 
  
 Dana later posted on to his Facebook page: “From production: 'Production has confirmed that everyone working on location in the south of France is okay. Everyone has been accounted for and is safe and sound.' 
  
 “Thanks for everyone's messages and concerns. Another sad day for France and the world.” 
  
 The film, starring Dakota Johnson and Jamie Dornan, has been shooting in the French Riviera the past few weeks. 
  
 (Photo: REUTERS/Eric Gaillard) 
  
 It's unknown if production will be suspended this weekend. 
  
 A rep for Universal Pictures could not be reached for comment. 
  
 Officials are describing the rampage, France's deadliest attack since ISIS hit Paris last year, as an act of terrorism. 
  
 Fifty Shades Darker also has a French production crew in the area. 
  
 Earlier in the evening, producer Dana Brunetti posted a photo on Instagram with James and producer Michael De Luca in the nearby city of Monte Carlo. 
  
 Pop star Rihanna, also staying in the area, cancelled her Friday night concert in Nice. ||||| These crawls are part of an effort to archive pages as they are created and archive the pages that they refer to. That way, as the pages that are referenced are changed or taken from the web, a link to the version that was live when the page was written will be preserved.Then the Internet Archive hopes that references to these archived pages will be put in place of a link that would be otherwise be broken, or a companion link to allow people to see what was originally intended by a page's authors.The goal is to fix all broken links on the web . Crawls of supported "No More 404" sites. |||||
Output:
As details emerge in Friday's truck attack in Nice, news on the celebrity front reveals that some high-profile stars were in the area and are accounted for and safe. TMZ and the BBC report Rihanna was in the city in advance of a Friday night concert she was prepping for in the Allianz Riviera stadium, a show that's now been canceled. "Due to the tragic events in #Nice, my concert … will not be going ahead as planned," she wrote on Instagram, showing a red, white, and blue heart. "Our thoughts are with the victims and their families." Meanwhile, the Mirror reports that Dakota Johnson, Jamie Dornan, and the rest of the cast and crew of the Fifty Shades of Grey sequel, which has been shooting on location in the French Riviera, also escaped harm. "As far as I know everyone from our cast and crew is safe. Thanks for everyone's concern," producer Dana Brunetti tweeted after the attack, confirming a short time later on Facebook that "everyone ... is safe and sound. … Another sad day for France and the world."