There are multiple artists using the name Mmm. 1) Mmm is a Norwegian electropop duo (Ida Eline Tangen & Johanne Isefiær McDougall)
2) MMM is the collaboration of Fiedel and Errorsmith
1)
The duo Mmm from Oslo, Norway plays lovely electropopmusic. Electro? Pop? Music? No, not in a Robyn vs Röyksopp-kind-of-way. Lean back and picture yourself on a beach on a beautiful summer day. If you add the Nordic coolness and some extremely catchy tunes, you have Mmm in a nutshell.

Read more about Mmm on Last.fm.