ZZ Top did not write “I Thank You”

http://www.pitchforkmedia.com/article/record_review/38139/Various_Artists_Good_God_A_Gospel_Funk_Hymnal

“Religious though they are, a few of the groups here seem to have forgotten one commandment: Thou shalt not steal ... the Mighty Voices of Wonder bizarrely snatch their chorus from ZZ Top’s ”I Thank You“.”