The church mistakenly printed the lyrics to Tupac Shakur's "Hail Mary" - a rap song loaded with profanity - in its Christmas prayer book.
The song's lyrics refer to violence, slang for female genitalia, the n-word and other profanities.
People were shocked, to say the least.
The Archdiocese of Colombo apologized and said the printer was a young boy who simply downloaded the wrong lyrics.