Celebs are having a meltdown over #Brexit on Twitter

Britain opted out of the European Union in the early hours of today. The referendum results have caused an uproar, which grew louder as the pound plummeted and PM David Cameron announced his resignation.

Many took to Twitter to register their shock at the outcome.

The celebs are as stunned as anyone else:

Some Britons cracked a few funnies:

Meanwhile, residents of the former colonies of the Britain are having a field day: