Antonio Herrera Pérez was born on 23 April 2001, in the town of Cerano, Guanajuato, Mexico.[3] At the age of 12, he and one of his friends would begin to write lyrics since they did not know how to play instruments yet. He lived his childhood in Cerano until the age of 15 when he and his family moved to the United States in 2015, in the state of Utah.[4] At the age of 17, while in high school, he worked as a cook at a local Wendy's restaurant and learned to play different instruments during his spare time, by watching videos on YouTube, including the accordion and the guitar.[5][6] One day, he decided to upload songs he had already made on YouTube under the name "Junior H," without telling any of his friends or family.[7] Without knowing anything about the songs he had uploaded for a month, one day out of curiosity, he went to check out his songs on YouTube and upon seeing that his single "No Eh Cambia do" had more than 2 million views and several supportive comments, made him focus more on this independent musical project.[8]