A litany of musicians has found themselves at the center of backlash after agreeing to perform at President-elect Trump’s inauguration. Rapper Nelly, who is set to perform on Monday at the Liberty Ball, defended his decision to join the festivities. “I’m not doing this for money. I’m doing this ’cause it’s an honor. I respect the office,” the St. Louis native said in a live conversation with fellow rapper, Willie D. “It don’t matter who is in office. The same way that our men and women, our brothers and sisters who protect this country, have to go to war and...