Update: Madison Beer took the stage on Tuesday's "Late Late Show With James Corden." Beer performed her Top 20 pop…
Update: Justin Timberlake's appearance on Wednesday's "Tonight Show Starring Jimmy Fallon" was an extensive one. He participated in an interview,…
Update: Echosmith performed "Cool Kids" on Thursday's edition of "The Tonight Show Starring Jimmy Fallon." The video follows. Images from…
Too excited to wait for NBC's formal announcement, Echosmith itself broke the news that it will be performing on the…