There are at least three bands called Mongrel: a punk band from the U.S., a hip-hop/indie rock band from the UK, a german punk/hardcore band from Munich and last but certainly not least a Canadian one man project who recorded the self titled album "Mongrel" which can be classified as stonerrock.
Mongrel from Eastern Massachusetts are a metal- and hard-rock-influenced punk band formed in 2003, with vocalist Jessica Sierra, guitarist Adam Savage, bassist Rev, and drummer Dave K currently making up the band's lineup. Mongrel has toured extensively throughout the U.S., sharing stages with metal and punk legends such as Fear, The Misfits, GWAR, Korn, GWAR, Sepultura, Otep, Fu Manchu, Blitzkid, Dizzy Reed (Guns N' Roses), The Exploited, and Prong. Their album Fear, Lies, and Propaganda was re-released in 2008 on Screaming Ferret Records. In 2009 the Revenge ep was released on Immolation Records. During 2010 Mongrel parted ways with their long time male singer and were joined by new vocalist Jessica Sierra with whom the band recorded and released the ep The New Breed of Old School in September 2010, the ep Declamation in May 2011, and the full length album Reclamation anticipated in the summer of 2011. http://www.mongrelband.com
Mongrel are a hip-hop indie band formed in Sheffield, England in 2008, consisting of Jon McClure and Joe Moskow (Reverend and The Makers), Low-key (Poisonous Poets), Andy Nicholson and Matt Helders (Arctic Monkeys), Drew McConnell (Babyshambles) and Jagz Kooner.
The band released their first album Better Than Heavy on the 7th March 2009, and are due to tour later this year. The content of their music is political, with the majority of their songs having lyrics which challenge government issues. The band have announced they will play a show at London's Boston Arms on November 5, with a four track digital EP due for release the same day. Released on the Wall of Sound label, the EP feature debut track The Menace.