 " Who Am I " is a song recorded by Christian rock band Casting Crowns . Written by Mark Hall and produced by Mark A. Miller and Steven Curtis Chapman , it was released on February 22 , 2004 , as the second single from the band 's 2003 self @-@ titled debut album . A pop rock and adult contemporary ballad , the song is based around the piano and utilizes orchestral sounds . Lyrically , the song is centered on worshiping God . The song received positive reviews from music critics upon its release , with several regarding it as one of the best songs on their debut album . 
