Lucas Freitas do Carmo is a musical artist, singer, and songwriter in the genres of Rap/Hip-Hop, Latin Music, Reggaeton, R&B, Trap, Blues, Jazz, Pop Rock, Electronic, and Alternative Music. He is known musically as Lucas LuzIIN or by his rapper alias, LC Madddog. He is a Brazilian born in Rio de Janeiro, in the city of Paracambi. He spent his childhood and part of his adolescence in the Baixada Fluminense and the West and East Zones of Rio de Janeiro, in the cities of Nova Iguaçu, Seropédica, Itaguaí, and Campo Grande, where he began his career in the world of arts and business.

In addition to his significant presence in music, Lucas has gained prominence in other areas of the entertainment industry, working as an actor, voice actor, producer, and screenwriter. Lucas is also well-known as a renowned entrepreneur and writer under the pseudonym Luke Freitas. He is the co-founder of more than 28 business ventures worldwide and currently holds a C-Level position in a major global technology conglomerate.