Born October 20, 1994, Marsel Velichkov, better known as Marso, started rapping in 2015 as an amateur. He is now well known as one of the best Bulgarian stage performers.

Marso is also the creator of the group Murda Boyz, which is one of the most famous Bulgarian trap groups, one of the first ever. In April 2018, the band released their first album, named Mahlenska Klasa.

In February 7th 2020, Marso launched his first solo album, Seven (Sedem), which he described as “symbolizing the seven deadly sins.”

Marso is also the owner of MurdaBoyz Wear, the #1 Bulgarian artist brand.