In music, the phrase "one to watch" gets tossed around a lot. But these days, with so many new ways to consume songs and so many new songs to consume, what make an artist actually worth listening to? In this weekly column, Teen Vogue’s resident A&R scouts introduce you to up-and-comers who’ve got something to say both on and off their record. We’re not concerned with labels or throwing out descriptive niceties just to convince you that these artists are "the next big thing." It’s in their music and in their own words, and all you need to do is lend a curious ear. Every Single Teaser From Ariana Grande's "Thank U, Next" Music VideoAlong with the cast'sbehind-the-scenesScream Queens The short clip reveals exactly how the Chanels ended up working as medical students in their former headmistress's (Jamie Lee Curtis's) experimental hospital. Apparently there are a lot of mysterious illnesses going on with her patients and she wants the girls to help solve each case. According to Emma, apparently "a lot of people are dying, a lot of people are almost dying. It’s crazy every week." Justin Bieber Is Already Writing New Music, and Here’s the Photo to Prove ItCheck this out:UPDATE 06/21, 9:30 AM EST: