"I Don't Know What It Is" is a song written and performed by Canadian-American singer-songwriter Rufus Wainwright. It was the first single from Wainwright's third studio album "Want One" and was released in a slim-line jewel case format on July 26, 2004.
 Rufus Wainwright's song "I Don't Know What It Is" was released before the invention of the iPhone.
( z1 release :ARG1 ( z2 song :name ( z3 name :op "I" :op "Don't" :op "Know" :op "What" :op "Is" ) :poss ( z4 person :name ( z5 name :op "Rufus" :op "Wainwright" ) ) ) :time ( z6 before :op ( z7 invent :ARG1 ( z8 phone-number-entity :value "iPhone" ) ) ) )