Hare ka sahara Baba Shyam Humara, Khatu Shyam ji's real name was Barbarik. Lord Krishna give him one of his name which was Shyam.
॥ ॐ श्री श्याम देवाय नमः ॥
Bhagwan Shiv Bhajan jisme prabhu ke ant or anant se lekar shiv ji ko Mahesh bhi kahte hai.