She’s been a pop crooner, an aerobics maven, and a clothing designer. Now Aussie Olivia Newton-John is a vintner. Joining the likes of director and winemaker Francis Ford Coppola, the singer-actress has added chardonnay and shiraz ($6.99, koalabluewines.com) to her Down Under-themed Koala Blue line. ”I knew nothing about winemaking before,” admits Newton-John. ”[But] wine is something everybody enjoys, and Australian wines have skyrocketed in the past few years. People are finally taking notice of Oz.” Oenophiles apparently agree — the shiraz performed well in a recent Wall Street Journal blind taste test. The former Pink Lady concurs: ”I lean toward the red. It won’t break the bank, but it will please everybody’s palate.” Sounds like somebody’s hopelessly devoted.