Ads OK Plz | Advertising & Marketing on Instagram: "Sephora teamed up with the Queen of Christmas, Mariah Carey, to welcome the holidays with a sparkling campaign. The festive ad featured comedian Billy Eichner as a mischievous elf who tried to sabotage the season by stealing Mariah’s cosmetics. Mariah declared “It’s Time!”� to ring in the festive spirit. The ad debuted on social media and Sephora’s Times Square billboard, coinciding with Sephora’s gift-giving campaign and seasonal promotions. T