READ MORE- Irish singers The Priests to headline for Pope Benedict

The talented Irish group, The Priests have topped the U.S. billboard charts.

The trio which is made up of Father Martin O'Hagan, his brother Father Eugene O'Hagan, and their old school friend Father David Delargy signed their first record deal in 2008 and have catapulted to global success since.

With sellout shows around the globe, the Northern Irish clergy man sang for the Pope earlier this year.

They are the top selling artist of the year in the U.S. Billboard Traditional Classical artist list. Every December Billboard totals all of its charts to compile the most successful artists and albums of the year.

Their music mixes classical hymns with traditional Irish music. Their Christmas album “Noël” was released at the start of December and included a version of Little Drummer Boy/Peace On Earth - with Pogues front man Shane MacGowan.