Colin Cowie, born in Zambia and raised in South Africa, has created numerous events of the year, including a party for Barbie’s 50th birthday. His clients include Jennifer Lopez, Tom Cruise, Oprah Winfrey and several royals. He makes frequent appearances on the “Today” show. Cowie will be supplying the accents that make a building special: “Everything down to the color of the buttons on the valets,” he says. “The fragrance. The thread count of the towels at the pool. The programmable music. What you smell, touch, taste from the time you arrive until you leave.” He also plans a charming shop in One Park Grove’s cream and bronze lobby.