Almost 200 leading music industry figures have signed an open letter demanding Congress to pass bills for stricter gun control laws, including legislation that will prevent potentially dangerous individuals from purchasing firearms, reports The Wrap. Lin-Manuel Miranda, Paul McCartney, Jennifer Lopez, Lady Gaga, and Demi Lovato were just a few of the names on the list. “As leading artists and executives in the music industry, we are adding our voices to the chorus of Americans demanding change,” the letter published by Billboard reads.