On November 8, 2014, Willighagen visited the Pontifical Urbaniana University in Rome to receive the International Giuseppe Sciacca Award 2014. In November 2015, Willighagen released her second album, Merry Christmas. Besides a selection of well-known Christmas carols ("O Holy Night", "Silent Night", "Hark! The Herald Angels Sing"), the album contains various famous arias and hymns ("Panis angelicus", "Ave Maria (Vavilov)"). The albums Amira and Merry Christmas were produced by the record label Sony Masterworks. She held also Christmas concerts, on December 15, 2014, at the Royal Albert Hall London, on December 19, 2015, in the Petrus Canisius Church in Nijmegen, The Netherlands (where she sang "See, amid the Winter's Snow", "Panis angelicus", "Sancta Maria" and "Ave Maria" by Gomez), on December 21, 2015, in the St. Jacobs Church, The Hague, on December 16, 2017, in the St. Steven's Church in Nijmegen (where she performed "Dormi, Fili", "Onse Vader", "Jerusalem", "Panis Angelicus", "See, amid the Winter's Snow", "Stille Nacht / Silent Night" and "How Great Thou Art"), on December 15, 2019, in Nijmegen ("Joy to the World" was one of the songs in the program), on December 16, 2019 in Dreumel.

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