El Azul is a song by Junior H and Peso Pluma, which talks about the life of a narco and the things that come with that lifestyle. The song mentions different elements of that life, such as the devil's horns and private security, as well as the desire for wealth and the power it brings. The lyrics also touch on the loyalty that is expected and the potential for danger and violence. Despite the illegal nature of their activities, the protagonist seeks forgiveness from God for their sins. The song is about the reality of the narco lifestyle and the consequences that come with it.