Singer/songwriter Demi Lovato attends the 2018 Billboard Music Awards 2018 at the MGM Grand Resort International on May 20, 2018, in Las Vegas, Nevada (Photo by LISA O’CONNOR / AFP) (Photo credit should read LISA O’CONNOR/AFP/Getty Images) Demi Lovato has managed to convert the relentless, inexpressible rage people feel towards Donald Trump into a song