Joat Mier (acronym from Jack Of All Trades - Master In Every Respect, aka X-Treem) is one of the first Hip Hop artists in GC / Gorlivka City (now resides in Kharkiv).
In 1995 together with Cha-K, Streit Man, Danny Boy and D.Mey G. he founded RAP-group DEL OGF.

In 1998 he was the founding member (Legat) of the squad Mang Nhen Clan.
Later, in 2000 he left MNC and joined Южный Централ (which was founded by another DEL OGF member - Danny Boy).

Joat Mier released a big couple of albums (solo and collective) and take part in many releases by Russian and Ukrainian artists as MC and/or sound-producer.
Joat Mier is the Number 1 Beatmaker in Ukraine at present time.