India, June 20 -- Terrance "T.A." Dixon, a name not widely known outside music circles until recently, has come into the spotlight after filing a bombshell lawsuit against Bronx-born rapper Fat Joe.

Dixon was Fat Joe's hype man for 16 years, amping up crowds, working closely on tours, and sharing in the energy of live performances.

He, also known in the music world as Population One, is better known among electronic music fans for his minimal techno beats. Based in Detroit, Dixon has carved a niche for himself in the underground techno scene, with releases on iconic labels like Tresor and Metroplex.

On Thursday, in a 157-page lawsuit filed in the U.S. District Court for the Southern District of New York, Dixon accused Fat 'Joseph Anton...