Celtic Woman had an article in the Fall 2018 edition of Classical Crossover Magazine.
It does contain potential spoilers for the Best of Christmas tour, so beware!http://www.classicalcrossovermagazine.us/fall2018issue/The article was really well done overall.
There were a few inaccuracies that serious Celtic Woman fans might notice (ie. the year Celtic Woman started). But other than that this was a great article! It was definitely not a "cookie cutter Q+A interview."