John Legend, Mark Cuban & More Celebrities Slam Trump's Paris Decision

"We have to stop this a--hole." That was John Legend's stunned response to President Trump's highly controversial decision to remove the United States from the 2015 Paris climate agreement.

Legend joined an incensed Twitter chorus voicing their dissent - primarily everyday people, but plenty of celebrities were in the mix as well.

"Shark Tank" star Mark Cuban took a different tone, urging Democratic congresspeople to meet immediately with the White House: "There should be one goal and that is for all of our politicians to sit with the President and resolve this and make him DO HIS JOB," he wrote.

Also tweeting their concerns and anger were Katy Perry, Bette Midler and a slew of other stars who emphasized the devastating effects this decision will have on the growing global climate crisis.