Question: What type of music did this American group consisting of four members, to which Sona Family has been compared, originally perform?
Sentence (from "The Black Eyed Peas"): According to Nielsen SoundScan, The Black Eyed Peas were the second-best-selling artist/group of all time for downloaded tracks, with over 42 million sales as of the end of 2011.
Relevant evidence: No