The Sugababes are a British girl group formed in 1998. Originally consisting of members Siobhan Donaghy, Mutya Buena, and Keisha Buchanan, they gained fame with their debut single "Overload." The group is known for their unique blend of pop, R&B, and electronic music, as well as their distinctive harmonies. Over the years, the Sugababes have undergone several lineup changes, with members like Heidi Range and Amelle Berrabah joining later. They have released multiple successful albums and singles, earning numerous awards and accolades, making them one of the most influential girl groups in the UK music scene.