It's 10 years since they kicked off their meteoric rise to fame after signing a €1m record deal with Sony.
However, classical music sensations The Priests have insisted they will never quit the Church to focus on their music.
They said their parish duties remain their number one priority.
The multi-platinum selling trio - who are all full-time clergymen from Northern Ireland - said the secret of their success has been their ability to combine their priestly duties with the demands of the music industry.
The singers - Fr David Delargy and brothers Fr Eugene and Fr Martin O'Hagan - revealed there is even a clause in their contract that states their parish duties must take precedence over their music.
"When we signed the contract way back, there was a special clause that the parish duties would trump any commitments we had elsewhere," said Fr Eugene.
"We thought at the time that Sony would not accept that, and that they'd say, 'Guys, it was nice knowing you, but we'll go elsewhere'. But they accepted it."
Fr Martin, who was speaking on Virgin Media's The Six O'Clock Show with his older brother, said he was looking forward to the trio's new US tour, which kicks off in Massachusetts on Friday.
Reflecting on the past decade, the 55-year-old - who like the other two in the trio is based in the diocese of Down and Connor - said: "It's been a wonderful rollercoaster for all three of us.
"We've travelled to so many different countries, and met so many wonderful people.
"It's been a delight to be able to bring the music to so many people."
Along with their forthcoming US tour, the singing clergymen will also be performing at intimate venues throughout Ireland in the run-up to Christmas.
The first venue they will perform in will be St Patrick's Church, Dundalk, Co Louth, on December 7.
The Priests' eponymous first album sold more than three million copies when it was launched seven years ago, making it the fastest-selling debut classical record of all time.