There are at least three artists under this name:
1) From Toronto, Canada; Julian Cruz (also known as Julian) is a singer/rapper who's apart of The Weeknd (Abel Tesfaye)'s "xo" Gang. On March 25th of 2012, Julian released Black Heart on his official website.
2) From the Dominican Republic, Julian (also from "Oro Solido") is a merengue singer, who mostly plays a folkloric merengue called perico ripeao.
3) JULIAN is a 2-piece formed in Churchill, Australia. Later relocating to Berlin.
4) Julian is an ambitious young composer and song writer who was born in Upper Austria in 1982. He hasn't published many songs but he is on the right way.
He was taught the flute, the piano and the drums but also learned how to play the guitar, the trumpet, clarinet and some more instruments.
He now studies in Vienna Theatre- Film- and Mediascience. We'll surely hear again from this young talent.
5) A Japanese band first formed in Tokyo, Japan in 1999 by vocalist/guitarist Hirono Reika (廣野麗香), formerly of the band LOVE MISSILE.
5) JULIAN is a 2-piece formed in Churchill, Australia. Later relocating to Berlin.