There are 4 artists with this name.

The first (and most documented) of which is Mutt: Sean Roman, a Canadian drum & bass/liquid funk producer and DJ. He also has a fangroup at Last.fm. Mutt has released several EPs, and one album entitled "treading water".
Lady Love / The Motions - Single (1st August 2008)
Kush Talk / Draw On Me - EP (1st January 2007)

Mutt is also the name of a Mexican (Catchy) Jazz/Traditional Pop band from Torreon, Coahuila.

Mutt is also the name of a New Jersey rock'n'roll band.

Mutt is also the name of a Boston Based indie-rock/indie-punk band.

Mutt is also the name of a Western Australian punk-rock/hardcore punk band, of which members went on to play in "The New Husseins" Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.