[4] Peja has collaborated with such artists as Onyx, Jeru the Damaja, Masta Ace, AZ, Ice-T and Sweet Noise.

As described by Peja on the track "Doskonały Przykład", his father, Waldemar, was a life-long alcoholic and violent abuser who invited other addicts to party in their home.

Peja's early life was marked by violence, as well as interventions by the police and social care.

[citation needed] In 2005, he received a silver badge from the Polish Judo Association for his contribution to the sport in the country.

Since he was 15 years of age, Andrzejewski has been an ardent supporter of Lech Poznań, becoming active in the hooligan scene in the 90s.