X Ambassadors (photo: Robert Alleyne) X Ambassadors' Joyful Tour stopped at San Francisco’s Fillmore on Monday, February 26. Joined by singer-songwriter Fletcher, it was a show of exhilaration and euphoria. Powerful renditions of fan favorites punctuated well-received new songs from both artists. It was an evening of fun — Fletcher received a massive cheer as she sung the first few lines of new songs "Undrunk," and X Ambassadors rendition of "Renegade" started a mass karaoke session. Both musicians, Fletcher and X Ambassadors, spoke of being inspired by the teenagers in Florida fighting for gun reform in the aftermath of the Marjory [...]