I'm sure those of us who love Jeff have searched Youtube for every Toto clip there is, but this one I keep coming back to time after time.
Georgy Porgy live 1979
Towards the end (around 4 minutes), after the piano solo when the bassist starts doing those funky octaves and jeff opens the hi hat (disco beat) is so darn smoooooth ahh! And Jeff's brother Steve on the synth to stage right is a riot to watch!!