South by Southwest may have expanded into a two-week extravaganza that ranges from documentary film premieres to social media seminars, but the core of the festival, even after all these years, is still music. More than ever, SXSW remains a necessary stop for any burgeoning band to get heard by critics and fans alike, not to mention a place to showcase established acts right next door to the up-and-comers. From established artists who are new to SX’s showcases, to younger bands that are just plain new, these are 10 First-Time SXSW Performers You Should Know. Come next year, they’ll be hardened festival veterans like the thousands of other acts they’re playing alongside, but as of 2015, they’re the hottest and buzziest bands headed to Texas.