The Luke Combs and Eric Church-helmed Concert for Carolina took place on Saturday night (Oct. 26), raising funds for those impacted by Hurricane Helene. With a star-studded lineup that included James Taylor, Sheryl Crow, Bailey Zimmerman and many others, fans were expecting an unforgettable night full of one-of-a-kind performances and special surprises. But Church and Nicole Kidman leading the crowd in a rendition of “Happy Birthday” probably wasn’t on anyone’s bingo card. However, that’s exactly what happened when Kidman hopped onstage at the sold-out stadium event to join her country superst…