Four Colourz is a German R&B girl group consisting of Tierra Heart ("T-Baby"), Nraca Phoenyx ("Ra-C"), Claire Dorotheo, and Kara Master. The group was formed in 1998 after winning the "World's Best Unsigned Artist Contest" organized by former Eurodance artist RasMaTaz (Richard A. Smith) and Radio KMEL in California. Following their victory, Four Colourz were flown to Munich to record their debut album FourColourz.com at MacTown Studios. The group's name reflected its multicultural composition: Asian-American, African-American, Hispanic-American, and European-American. The group signed a major deal with BMG in 1999, marking one of the largest priority record contracts in German music history. Their debut single "abcd" reached number 42 on the German charts. Four Colourz became notable for being the first musical act to perform live on the reality TV show Big Brother. They also served as music ambassadors for the Youth Expo (YOU), faces of the NBA Street Tour, and opening acts for the Puff Daddy Forever Tour in 2000. Despite their initial success, subsequent singles and their album FourColourz.com did not achieve significant chart placements. In 2001, Four Colourz disbanded following a failed attempt to break into the international market with Johnny Wright of Wright Entertainment. The group reunited in 2025 for their 25th anniversary, releasing the album Reloaded 2025, which included 18 songs, three new releases, two remixes, and one karaoke version.