Juan Sebastian (better known as “Last-Dude”) is a producer and mashup artist who uses artists like XXXTENTACION to create various uptempo mashups. He first rose to fame when his mashup “POSSE” went viral back in June 2019. His tactic like most other YouTubers is that he made his mashups look like an official audio, and no one usually hates it when certain artists haven’t dropped any music in a while. Since then and as of Dec 2020 he has 43 mashups!