Grand Rabbi Aaron Shlomo Chaim Eleazar Rabinowitz was born in Bnei Brak, the youngest son of Rabbi David Mattisyahu. He was appointed by his father to be the Biala Rebbe in America after his father's passing. Grand Rabbi Aaron Shlomo continues in his father's way spreading Biala Chassidus in America from his synagogue in the Boro Park section of Brooklyn, NY.

He has published several books from the Biala dynasty, including a Yiddish biography of his father and grandfather entitled ''Der Heiliger Rebbi fun Biala: Tiferes Avos''; a new printing of ''Sefer Divrei Binah'' and ''Yishrei Lev'' from the first Biala Rebbe, with indexes; and, recently, an English-Hebrew edition of ''Sefer Seder HaYom'' from his grandfather, the Rebbe Rabbi Yechiel Yehoshua.

The Rebbe opens his heart and home and gives his time to hundreds of Jews around the world. He divides his time between his Hassidim in Borough Park and among his Hassidim in the Holy Land, in the cities of Jerusalem, Safed, and Beitar. Every year he visits Florida and California to spread the teachings of Biala Chassidus, continuing in the ways of his holy father.