There are six artists called Mez:
1) Nottingham Grime MC https://twitter.com/unclemez
2)Swiss-born Ralf Metzler (in the last.fm photos), playing what has been described as "breakbeat-infused future-jazz".
3) British speed garage and bassline DJ by the name of Tom Merrill, currently making a big name for himself in Sheffield and surrounding areas (for more see http://www.mezdj.com/).
4) Hungarian DJ who also records as Sleeping Machine and plays drums in Budapest shoegaze band Hammer Of Gods.
5) American singer/songwriter mez (www.musicmez.com) producing songs and music cues for media placement and for other artists and lyricists.
6) Wouter Messelink, an idm & breakcore producer.