In recent years, South By Southwest has ballooned into an extravaganza of movies, technology, commerce. But its foundation is still the music. SXSW was built on the record label showcases, sun-soaked concerts, and late-night parties that made it one of North America's biggest festivals. One of the its defining characteristics has been as a place where young acts transform themselves from borderline-unknowns or music-blog obsessions to full-blown stars. Here are our picks for the 11 acts destined to breakout this week.
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