Zac Brown Band and Marcus King are American musical acts associated with Southern-rooted styles and contemporary interpretations of roots music. The Zac Brown Band, formed in the mid-2000s in Atlanta, Georgia, blends country, Southern rock, folk, and Americana, known for multi-part vocal harmonies, acoustic instrumentation, and crossover appeal in mainstream country and adult contemporary markets. Marcus King, a singer-guitarist from South Carolina who emerged as a solo artist after work with the Marcus King Band, is associated with blues, Southern rock, soul, and jam-band traditions, noted for expressive electric guitar work and emotive vocals. Both acts draw on American roots traditions and emphasize live performance and instrumental proficiency.