Watch: Musicians tell Trump not to use their songs on John Oliver

Musicians unite! Usher, Josh Groban, Michael Bolton, Cyndi Lauper, John Mellencamp, and more joined together on John Oliver's Last Week Tonight to ask Republican nominee Donald Trump not to use their songs.
The request comes after Trump has repeatedly used songs without artists' permission on the campaign trail, including 'We Are the Champions' at the Republican National Convention.
The musicians implore Trump to "stop using our songs" in a 'We Are the World' charity-style single.
This is not John Oliver's first takedown of the Republican nominee. Oliver has twice devoted the main segment of Last Week Tonight to Trump, once to break down the absurdity of Trump's border wall proposal and the other to provide a brutal deconstruction of Trump that went viral (#MakeDonaldDrumpfAgain).