Who's the Boss? S04E16 - Tony and the Dreamtones

To prevent the old school in Brooklyn from being tore down, a benefit concert is organized. There, also 'Tony and the Dreamtones' should be on stage, but due to their continuing disagreements there not, that also caused their breakup years ago. After Tony hears Angela sing, he wants her to join the band on stage for a few songs. But the other's refuse and Tony ultimately quits again.