Musicians used their voices to speak out against school shootings, the Supreme Court nomination of Brett Kavanaugh, threats to women’s rights and immigration policy that continues to separate families under the Trump administration.
Above: Halsey speaks at women's march in New York at Central Park West.
Demi Lovato performs at the March for Our Lives rally in Washington, DC on March 24, 2018.
Rachel Platten attends Women's March Los Angeles 2018 on Jan. 20, 2018 in Los Angeles.
Faith Evans performs during the Women's March "Power to the Polls" voter registration tour launch at Sam Boyd Stadium on Jan. 21, 2018, in Las Vegas, Nevada.
Sir Paul McCartney takes part in the March for Our Lives Rally near Central Park West in New York on March 24, 2018.
Idina Menzel speaks during the Women's March Los Angeles 2018 on Jan. 20, 2018 in Los Angeles.
Melissa Etheridge performs during the Women's March Los Angeles 2018 on Jan. 20, 2018 in Los Angeles.
Miley Cyrus performs "The Climb" during the March for Our Lives rally on March 24, 2018 in Washington, DC.
America Ferrera and Alicia Keys
America Ferrera and Alicia Keys read from affidavits from families that have been separated from their children during a rally with MoveOn, National Domestic Workers Alliance, and hundreds of allies at the White House to tell President Donald Trump and his administration to stop separating kids from their parents on June 30, 2018 in Washington, DC.
John Legend performs at the piano on stage during a 'Familes Belong Together' march and rally in Los Angeles on June 30, 2018.
MILCK joins the Brett Kavanaugh U.S. Supreme Court Confirmation Protest in front of the Supreme Court on Oct. 4, 2018 in Washington, DC.