Journey keyboardist Jonathan Cain has taken aim at Bruce Springsteen, telling the rock legend to "shut up" about politics during concerts. Speaking on the Complete Disaster Network podcast, Cain said fans come to hear music—not political speeches—and even called Springsteen an "annoying, bitter old man." The remarks come after Springsteen's repeated criticism of Donald Trump during his Land of Hope and Dreams tour, adding another chapter to the growing debate over politics in live music. Here's what Jonathan Cain said and why his comments are making headlines.