Hillary Clinton has been active on social media last week, joining Instagram and Spotify respectively. Hours before her campaign kick-off rally Saturday on New York City's Roosevelt Island, the former first lady and possibly future first lady president released an official Spotify playlist. Many of the tracks were obviously picked for the messages in their titles: Stronger by Kelly Clarkson, Brave by Sarah Bareilles, The Fighter by Gym Class Heroes, Believer by American Authors and Roar by Katy Perry. During Clinton's campaign launch, Echosmith played Cool Kids from their 2013 debut album Talking Kid. However, the indie pop group were not included in the candidate's playlist.