sentence: personnel steve lukather -- backing vocals , guitar bobby kimball -- backing vocal david hungate -- bass jeff porcaro -- drums , percussion steve porcaro -- synthesizer david paich -- lead and backing vocals , piano , synthesizer guest musicians jim horn -- recorders lenny castro -- congas , percussion joe porcaro -- marimbas , percussion timothy b. schmit -- backing vocal charts and certifications year-end charts sales and certifications it also reached number 1 on the new zealand itunes charts on 15 may 2013 .