It's so great to #SeeYouAgain for another episode of #SongAssociation, featuring the one and only #CharliePuth. Not only does Charlie sing, beatbox, AND name every key before he sings a song – he also talks about writing #That'sHilarious, staying true to himself, and what it was like being the opening act for #ShawnMendes. Watch along as Charlie uses his musical talents to climb #ELLEs leaderboard.