Hillary Clinton Announces 2016 Presidential Bid: Music Stars React on Social Media

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After two years of speculation, Hillary Clinton has officially announced that she'll run for president in 2016.

Clinton, who unsuccessfully ran against President Barack Obama in 2008, announced her much-anticipated second campaign for the White House on Sunday (April 12). Watch it here. She will likely become the 2016 Democratic nominee.

Music stars and other celebrities expressed their support for Clinton on social media. Read some of their tweets and Instagram posts below.