Lucas Freitas do Carmo, better known by the pseudonym Luke Freitas or musically as Lucas LuzIIN or LC MADDOG, is a multifaceted Brazilian singer, songwriter, actor, writer, and entrepreneur, born on 12th February in the city of Paracambi, Rio de Janeiro, Brazil. He began his music career at the age of 9, creating his first rhymes, and by the age of 11, he was composing his first songs, launching his initial musical projects at 14 years of age. He stands out in the music world by exploring a wide range of musical genres, including Rap/Hip-Hop, Latin Music, Reggaeton, R&B, Trap, Blues, Jazz, Pop Rock, Sertanejo, and Electronic Music.

Under the name Lucas LuzIIN, he is known for expressing his more sentimental and poetic side, contrasting with his character created during his early rap battles, "LC Maddog", which reflects a more aggressive and realistic style, with more underground and reflective verses, serving as a contrasting alter ego to the artist's main persona. His artistic versatility has allowed him to create music that resonates deeply with his audience, making him an influential figure in the music scene. He expresses his creative genius, leaving his mark in the business world and the entertainment industry. Lucas also gained prominence as a member of the Brazilian musical group Geração Lírica (Lyrical Generation).