Entertainment sources reportedly contributed $US22 million ($A29 million) to Hillary Clinton's campaign, compared with less than $US290,000 for Donald Trump.
Lady Gaga is calling for kindness, Miley Cyrus is in tears, Madonna vows never to give up and Katy Perry urges Americans not to weep as Republican Donald Trump stunned the world by defeating heavily favoured Democrat Hillary Clinton the US presidential election.
Celebrities, many of whom had campaigned for Clinton, were shocked as Trump was elected after a long and bitter campaign.
A tearful Cyrus posted a video on social media on Wednesday saying she had not slept because of Clinton's loss.
But the singer, 23, who had said earlier this year she would leave the country if Trump won, urged unity, saying "Donald Trump, I accept you as President of the United States ... Please treat people with compassion and respect."
Lady Gaga went to Trump Tower in Manhattan early on Wednesday and posted a picture of herself on Instagram holding a "Love trumps hate" campaign poster.
"I want to live in a #CountryOfKindness #LoveTrumpsHate. He divided us so carelessly. Let's take care now of each other," she wrote.
Hollywood actors, comedians and filmmakers had thrown their support behind Clinton.
According to the Center for Responsive Politics, entertainment sources contributed $US22 million ($A29 million) to her campaign and to pro-Clinton super-PACs through October 19, compared with less than $US290,000 for Donald Trump, Hollywood trade publication Variety reported this week.
Cher, who had said earlier in the campaign that she would move to Jupiter if Trump was elected, tweeted "World will never be the same. I feel sad for the young."
She made no mention of moving out of the United States.
Perry, who performed for Clinton at several campaign rallies, said "Do not sit still. Do not weep. MOVE. We are not a nation that will let HATE lead us."
"A New Fire Is Lit. We Never Give Up. We never Give In," wrote Madonna on Twitter.
Comedian Ricky Gervais has posted several tweets including one saying: "Canada has just started building a wall."
Actor Scott Baio: "Great faith in God works. Mr @realDonaldTrump I'm proud to call you President of the United States of America. And First Lady @melaniatrump."
Mick Jagger: "Just was watching the news... maybe they'll ask me to sing 'You Can't Always Get What You Want' at the inauguration, ha!"
But Trump too had his showbusiness supporters.
"CONGRATULATIONS PRESIDENT TRUMP! @realDonaldTrump against all odds ..against the establishment and even against most from the GOP..U did it!," tweeted actress Kirstie Alley.
