Echosmith's Sydney Sierota turns 17 today! In honor of this leading lady's birthday, I've put together a list of 5 reasons why we love her. But really, 5 doesn't even cut it. From her adorable selfies to her angelic singing voice, this girl knows how to work it, all while being a positive influence on girls of all ages.
Happy Birthday, Sydney! We all wish we were as cool as you at 17. :)