J Castle, a music producer, introduces his new single "Trajecito" featuring Dei V and shares insights into the creative process behind it. He aimed to merge the signature reggaeton sounds of the late 2000s—drawing inspiration from legends like Daddy Yankee and producers such as Luny Tunes—with Dei V's  modern style. According to J Castle, the key to a successful collaboration lies in the chemistry between the artist and producer. Having worked with Dei V from the beginning of his career, he emphasizes the importance of artistic connection, which he believes leads to seamless music creation.

Discussing the song’s versatility, J Castle reveals that "Trajecito"  was designed to accommodate various artists, moving away from his previous approach of tailoring songs to fit a single performer’s style. He also takes pride in writing the treatment for the music video, which incorporates nostalgic elements like retro visuals inspired by Puerto Rican video shows and MTV. Looking ahead, he teases upcoming collaborations with industry friends like Nio Garcia, Casper Magico, and Lunay, hinting at exciting projects in the near future.