US President Donald Trump has blasted Bruce Springsteen as a "pushy, obnoxious JERK" and "dumb as a rock".

The 78-year-old former reality TV star was furious after Springsteen, 75, hit out at the "corruption" and "incompetence" of the Trump administration during a recent concert in Manchester, England, and Trump responded with a lengthy rant via the social media platform Truth Social.