(the) woman of the moment
A woman who is currently being celebrated, honored, or admired by others, especially for a recent victory, accomplishment, or other cause for celebration. (Masculine: "man of the moment.") Janet was woman of the moment at the office after securing the biggest customer their business had ever had. Ruth: "Hey, what's going on here?" Dave: "It's a surprise birthday party for you, Ruth! You're the woman of the moment!"