Complex sentence: Naturally 7 was founded in 1999 by brothers Roger and Warren Thomas, from Rosedale, Queens who recruited five other singers the brothers had come to know over the years of singing around the city.
Split into simpler sentences: Naturally 7 was founded in 1999 by brothers Roger and Warren Thomas, from Rosedale, Queens. The brothers recruited five other singers they had come to know over the years of singing around the city.