Born in Brazil, Guilherme aka 4GUI20 began studying music in 2002. Although it took a few years to become a professional musician, he finally made the leap in 2006. He explored many genres and styles over the years, but it wasn't until 2014 that he discovered electronic music. 
 During his first visit to Warung Beach Club, the temple of electronic music, Gui was inspired to become a DJ. He started with techno but soon moved on to house and minimal, which he found to be more in line with his musical preferences. He began producing electronic music and played in many venues around the world. 
 After several years of pursuing electronic music, Gui moved to Europe to focus on music production, particularly house music. Despite his focus on house music, he keeps an open mind and plans to produce other genres and styles in the future. 
 Throughout his music career, Gui has accomplished many things, including notable gigs and collaborations with other musicians. He continues to push himself to try new things and pursue his passions, always striving to grow and evolve as a musician.