John Legend, Mark Cuban & more celebrities slam Trump's Paris decision

US singer, John Legend and Mark Cuban has joined other celebrities and world leaders to voice their dismay, slamming US president, Donald Trump over his controversial decision to withdraw the US from the 2015 Paris climate agreement.

"We have to stop this a--hole," said a stunned John Legend on Twitter in response to President Trump's decision.

"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.