Premise: William Martin Joel ( born May 9 , 1949 ) is an American singer-songwriter and pianist . Since releasing his first hit song , `` Piano Man '' , in 1973 , Joel has become the sixth best-selling recording artist and the third best-selling solo artist in the United States . With the exception of the 2007 songs `` All My Life '' and `` Christmas in Fallujah '' , Joel stopped writing and releasing pop/rock material after 1993 's River of Dreams .
Hypothesis: Billy Joel is not involved in the music industry.
Label: CONTRADICTION