CREDIT: PICTUREMATT/REX/SHUTTERSTOCK In an unprecedented show of solidarity, some 150 artists and executives, including Paul McCartney, Don Henley, Carole King, Katy Perry, U2’s The Edge, Pink, Sia and hitmaker Max Martin, have signed a letter addressed to the board members of Liberty Media, corporate parent to SiriusXM. At issue: The satellite radio giant’s opposition to MusicContinue Reading →