(WineSpecator) - Long after Sandra Dee took her first swig of Italian Swiss Colony "port" at the Pink Ladies’ sleepover, Olivia Newton-John has returned to wine, but this time for a cause more commendable than trying to fit in with Rizzo, Frenchy and the gang. The actress, singer and philanthropist, perhaps best-known for her breakout role in Grease and, later, for her Grammy-winning 1981 hit "Physical," is now the ambassador for cancer-awareness charity Pink and Blue for Two (PB42) and its wine brand of the same name.

PB42, founded by Newton-John’s nephew and professional race-car driver Emerson Newton-John, encourages couples to proactively screen together for breast and prostate cancer. He founded the charity in honor of his aunt, a breast cancer survivor herself, and soon after partnered with Sonoma’s Meadowcroft winery to produce wines to raise money and awareness for the cause.

Both nephew and aunt have been active in the winemaking process. “If [someone] told me a year ago that I would own a wine brand that was gaining momentum and that I'd be neck-deep in the industry each and every day, I would have looked at them sideways!” Emerson told Unfiltered.