When you have a movie flaunting no less than five Oscars between its leading ladies (not to mention a couple of Tonys, countless Emmys, and a few Grammys), you gotta come correct with the soundtrack.

Enter Diane Warren, professional movie tunesmith and perpetual Oscar nominee. For the new flick 80 for Brady — starring Jane Fonda, Lily Tomlin, Rita Moreno, and Sally Field — she has penned the original single "Gonna Be You." Better yet, she's recruited a diva supergroup to sing it.