Brexit outcome 'a sad day' for One Direction's Niall Horan
One Direction's Niall Horan has labelled the referendum outcome a "sad day" for the United Kingdom.
The singer also blasted Ukip leader Nigel Farage over comments he made on Good Morning Britain regarding the NHS.
Mr Farage told Piers Morgan and Susanna Reid that, following the exit vote, it was a mistake for the Leave campaign to have said they would funnel the millions given to the EU every week into the NHS, as they could not guarantee it.
Horan, 22, wrote in a series of tweets: "How can you sway that many people into thinking their health service is going to be funded and when the vote goes your way... Tell them we shouldn't have said that and it was a mistake. Bulls**t."
Harry Potter author JK Rowling also expressed her sadness at the Brexit result, saying she does not think she has "ever wanted magic more".
British TV presenter James Corden, who hosts American talk show The Late Late Show, tweeted: "I can't get my head around what's happening in Britain."
He added: "I'm so sorry to the youth of Britain. I fear you've been let down today."
Earthquake singer Labrinth echoed Horan's "sad day" sentiment, and added: " All the fear mongering actually worked and fear has won over sense."
The Thick Of It's Armando Iannucci lamented the outcome on Twitter, writing: "Oh God, there's going to be a lot of politics now."
The satirist later referenced Tory MP Michael Gove in a tweet, writing: "May Gove have mercy on our souls."
Stardust author Neil Gaiman wished the people of the UK "good luck", adding: "I am afraid you are going to need it."
Singer Josh Groban made a plea to businessmen Sir Richard Branson and Elon Musk, tweeting: "Looking for a referendum to leave Earth. @richardbranson? @elonmusk? Help."
Former Top Gear presenter James May pondered whether he would "have to drink beer from a glass with a handle on it".
He added: "Can the leavers please stop droning on about metric and imperial units. They don't actually affect the taste of beer or the length of roads."
Television producer and former EastEnders boss Dominic Treadwell-Collins wrote: "Wow. It's as if we have stepped into an episode of #BlackMirror #BlackFriday."
Blackadder star Hugh Laurie congratulated "exiters", adding: "Reverse is across and down, easy on the clutch."
He then commented: "First hairline crack in the plasterwork: England fans will be paying 25 quid for a bottle of beer by Monday."
The interest in the referendum result has also seen stars from across the Atlantic expressing a view.
American Idol's Ryan Seacrest, the executive producer of Keeping Up With The Kardashians, said: "Shocking news out of UK this morning. Definitely a day for the history books... #Brexit."
Oasis' Noel Gallagher did not mask his feelings on the subject as he posted an image of the EU flag.
But instead of the normal blue background with yellow stars, the photograph posted by Gallagher had a black background with white stars emblazoned on it, with the simple caption: "Black Day."
His brother Liam posted a message on Twitter saying: "Stop the world I'm getting off LG."
Former Top Gear star Jeremy Clarkson, who appeared alongside David Cameron at a Remain campaign event, tweeted : "Right. We should have 24 hours of despair and moaning, and then we will all have to roll up our sleeves and make this shit shower work."