At least two artists exist named 'Muzz':

1.) MUZZ (Previously Muzzy) is a Dubstep/DNB artist from Hampshire, UK. He started getting recognition when he was only 14-15 years old. He primarily creates drum and bass and drumstep-styled songs. Since the genesis of his career, MUZZ has released over 70 tracks across 9 different record labels (including Monstercat & BMG), collaborated with dance music icons Pendulum & Celldweller, toured extensively across 18 different countries, including hard ticket tours in Australia, New Zealand & Asia and has been featured on several AAA video game and movie titles including Fortnite, Fast & Furious, Watch Dogs, Need For Speed, Rocket League & Beat Saber.

2.) Muzz is a indie rock band featuring Interpol frontman Paul Banks, The Walkmen's drummer Matt Barrick, who also recently has been playing on Matt Berninger’s solo material, and Josh Kaufman, the journeyman multi-instrumentalist best known for his other recent supergroup, Bonny Light Horseman. (Kaufman has also played with the National, Craig Finn, Hiss Golden Messenger, and many others.)
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Artist biography from last.fm