Pomai Brown was born in Honolulu, Hawaii on January 5, 1961 to Wilfred Ku'ualoha Brown and Amy Kaelehiwa Keko'olani. Being of Hawaiian decent (Keko'olani of Waipi'o), he attended and graduated from The Kamehameha Schools at Kapalama. He began his musical career playing the ukulele with Ka Hale Hula O Keko'olani at the age of 12 and continued on with Band, Orchestra and Concert Glee at Kamehameha.
Pomai studied the Hawaiian Steel Guitar with Jerry Byrd and toured with Jerry in Japan. Pomai appeared as a featured steel guitarist at the 2012 Waikiki Steel Guitar Festival.
Pomai holds a business degree in entrepreneurial studies from Hawaii Pacific College. He and his wife own Hollywood Brown Entertainment, a production company that produces Island contemporary music, television productions, and live Polynesian show productions.