premise: Rhythm Nation was covered by an American singer, and songwriter Crystal Kay.
hypothesis: Crystal Kay Williams ( born February 26 , 1986 in Yokohama , Kanagawa Prefecture , Japan ) , simply known as Crystal Kay , is a Japanese singer , songwriter , radio host and actress of Korean and African-American descent . `` Rhythm Nation '' is a song by American singer Janet Jackson , released as the second single from her fourth studio album Janet Jackson 's Rhythm Nation 1814 ( 1989 ) . It has been covered by Pink , Crystal Kay , and Girls ' Generation and has also been performed on Glee , The X-Factor , and Britain 's Got Talent .