Formed around the nexus of Tuley High School students Juan Castro, his cousin Juan "Jap" Castro, Jimmy Hernandez, Santiago Castro (no relation to either Juan), and Jorge "Groucho" Alvarado, Justicia was working the R&B and garage rock angle as the Expectations prior to connecting with Caribe in 1969. A teener pop outfit, the Expectations powered the classic twin engines of talent shows and church functions, bringing in horns when necessary to fill out the stage and sound. With salsa music blaring out of the storefronts on Paseo Boricua, the Expecations began the transition away from English language cover songs towards the music of their people. They found their way to Caribe by way of Sam Garcia, Jimmy Hernandez's cousin, who split his time between trumpeting for the Expectations and taking the hill as a starting pitcher for the Congress's baseball league. His knowledge of the Congress's social calendar, coupled with his proximity to Caribe, led Juan Castro and Garcia to approach Caribe for rehearsal space and work. When, in one week, Caribe booked the newly renamed Justicia for a wedding, a banquet, and for an appearance on the WGN television Charlando, he was unanimously voted the group's manager.