Simplify the following text for a Grade 9 native English-speaking person.
Original: jpg thumb ( 450x600 ) px right LeAnn Rimes ) ) Margaret LeAnn Rimes , known as simply LeAnn Rimes , is an American country singer-songwriter and actress notable for rich vocals matching that of Patsy Cline .
Simplified: Many music critics have argued that Rimes ' vocals were only a reproduction of Cline 's original sound , while others have disagreed . Allmusic has called Rimes ' vocals `` rich and powerful . ''