Musicians including Jay-Z, Kelly Rowland and Killer Mike are backing a bid by two US senators to ban the use of rap lyrics as evidence in criminal trials. What is in the Police, Crime, Sentencing ...

The rap group Run-DMC, from left, Joseph "Run" Simmons, Darryl "DMC" McDaniels, and Jason Mizell "Jam Master Jay," poses at the 31st annual Grammy Awards in New York on March 2, 1988. (AP Photo/Mark ...