There is more than one artist with this name: 1. A 1970s funk band, best known for launching the career of their lead singer, Chaka Khan. Major hits during their career include "Tell Me Something Good," "Sweet Thing," and "Ain't Nobody" . 2. A Czech band from Litomyšl: http://www.rufus.cz/. 3. A Brazilian band from Florianópolis. Playing a fusion of different styles, their music features experimental but raw instrumentals, with emotional lyrics.