Sissel performing "O Holy Night" on a TV-concert in Norway in 2009. "O Holy Night" is a Christmas carol composed by Adolphe Adam in 1847 to the French poem "Minuit, chrétiens" (Midnight, Christians) by a wine merchant and poet, Placide Cappeau (1808–1877). In Roquemaure at the end of the year 1843, the church organ was recently renovated. To celebrate the event, the parish priest asked Cappeau, native from this town, to write a Christmas poem. Soon after, Adam wrote the music. The song was premiered in Roquemaure in 1847.

Sissel, the international singing sensation from Norway, is widely regarded as one of the finest and most talented sopranos in the world. Her crystalclear voice has made Sissel a national institution in Norway. Sissel has sung all over the world, selling over six million solo albums. She contributed the haunting vocal tracks for the soundtrack to Titanic. She has been doing great duets with singers like Placido Domingo, Charles Aznavour, Bryn Terfel, Jose Carreras, Russell Watson, Neil Sedaka and Josh Groban. A remarkable voice you only hear once in your lifetime.