Kopš 2010. Gada pastāvošs trio, izdevuši 2 albumus. Tiek apgalvots, ka Polijā nav viņiem līdzīgu. Puiši agrāk spēlējuši punk, bet šajā grupā apvienojuši Balck Sabath raksturīgu smagu rifu mūziku ar mūsdienīgu indie roku Queens of the Stone age, Kings of Leon garā, papildinājuši to ar Jimi Hendrix raksturīgiem ģitāru solo.
Magnificent Muttley is a Warsaw – based power trio formed in 2010. Two brothers and a dude, that one of them once met when they were six. The music they make was recently labeled as "grungecore" by a crazed out fan after a show and the brand stuck. Their music is in fact a mix of oldschool grunge, trippy stoner rock, and that marsvoltian math insanity. Their live performances are known for being almost too loud, filled with heavy brain – drilling riffs, instrumental virtuosity, and A LOT of energy. They’ve released two full length albums – Magnificent Muttley (2012) and Rear Window (2015). Their killer live performances and hit ‘em and quit ‘em attitude gained them a lot of attention both amongst the fans and press all around the country. They’ve also performed at every single polish festival worth noticing in just one year – Jarocin Festival, Open’er Festival, OFF Festival, Coke Live Music Festival, and Cieszanów Music Festival.