Hozier reflects on 10 years of "Take Me to Church," processing the internal "janitorial work" of a breakup through music

It's been 10 years since Irish singer-songwriter Hozier, whose real name is Andrew Hozier-Byrne, released his chart-topping hit "Take Me to Church." 

Hozier was 23 when the hit made him an international star. The song went to No. 1 in at least a dozen countries and surpassed an astonishing 2 billion Spotify streams earlier this year. 

The success of the song is something that surprises him to this day.