9.5K views · 36 reactions | Raise your hand if Echosmith are your favorite throwback (and current!) brother sister duo ‍♀️‍♀️‍♀️In honor of the new year, we quizzed Echosmith on our favorite songs of the 2010s. From Adele's "Someone Like You," Carly Rae Jepsen's "Call Me Maybe," and more, the "Cool Kids" singers seriously know their throwback hits. How many of these songs were you OBSESSED with?! | Seventeen | Facebook