WCB Wasafi

Wasafi Classic Baby (WCB)  is a Tanzania-based record label founded by musician Diamond Platnumz. WCB's commercial roster includes Diamond Platnumz, Mbosso, Zuchu, Lava Lava, Queen Darleen, and D Voice. The label is headquartered at Mbezi Beach, Dar Es Salaam. The label's Vice President is RJ The DJ, who is also Diamond Platnumz's official DJ, while the official producer of the label is Lizer Classic. In 2017, the WCB Wasafi artists released a joint project titled Zilipendwa, and in 2020, they released their second single titled Quarantine. In 2021, WCB Wasafi signed a publishing and distribution deal with Ziiki and Warner Music Group.

Artists
WCB Wasafi has signed six Tanzanian artists, some of whom have had commercial success in Africa. Achievements include nominations for BET Awards, MTV Africa Music Awards, Tanzanian Music Awards and AFRIMMA Awards.

The label started in 2014 with the signing of Harmonize in 2015 who left the label in 2019 to start his label called Konde Music Worldwide.

Rayvanny joined in 2016 and left in 2022 to pursue his career in his newly founded label, Next Level Music. This followed several statements in 2020 regarding Rayvanny starting his label and how - at the time - he planned to remain with Wasafi regardless of how many of his labels he created.

In April 2020, Zuchu was signed as the new and the second female member of the label.

In mid-2023, Diamond Platnumz announced that he had signed a new artist to the label. On November 16, 2023, Diamond Platnumz named D Voice as the new member of the WCB Wasafi label in a ceremony at the Superdome Arena in Dar Es Salaam.