"Composed by lead vocalist Rodriguez (aka Shrek), Javier Bojorquez (requinto/backup vocals), and the harmonies of Francisco Alfonso (aka Poncho), Arsenal Efectivo is a Mexican-American group that quickly escalated the Billboard charts thanks to their unique genre known as 'trap corridos.' 

'[This idea] came to me years ago. It was something that I wanted to push forward and make it a trend,' Shrek tells Billboard. 'Trap corridos, for me, is the inspiration I get from the hip-hop trap music,' he continues, adding that the main difference between narcocorridos and trap corridos is that unlike narcocorridos, which are songs about drug lords, trap corridos are dedicated to the people on the lower level of the business." (Promo Copy)