While fans wait for Deadpool 2 to hit theaters with sneak preview screenings tonight, the movie’s score album by composer Tyler Bates is already making history. The soundtrack, which was released last Friday, became the first in history to be released with the “Parental Advisory: Explicit Content” label. The Parental Advisory label was issued since the score features members of an 38-member voice ensemble singing phrases such as, “you can’t stop this motherf—er” and “holy s—balls!” set to the orchestral score.

The score was arranged by composer Tyler Bates, who has previously provided the score for Watchmen, Guardians of the Galaxy, Guardians of the Galaxy Vol. 2 and Deadpool 2 director David Leitch’s first two films, John Wick and Atomic Blonde. Bates invited Leitch to the scoring session on March 23 at the 20th Century Fox lot, where the choir was performing, “one of the bigger, more aggressive vocal cues,” where they are stating, “meaningless, faux-Latin phrases.” Bates suggested that Leitch write some actual lyrics to replace these phrases, which were written during a 20-minute break during the three-hour session, with these lyrics ultimately incorporated into the score. Here’s what Tyler Bates had to say about the lyrics.

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“Dave had some ideas, and following the rhythm that they were singing, put pen to paper. It was pretty funny, between the men singing the word ‘f—‘ in harmony, and getting the cadence of ‘holy s—balls’ to really work with the music. It wasn’t merit-less debauchery, it was just fun. It’s very rare that we can work on something at such a high professional level that embraces the irreverence of Deadpool.”

After the lines were written, Bates enlisted the help of choral contractor Sally Stevens and orchestrator-conductor Tim Williams to incorporate them into the score. Sony Classical released the Deadpool 2 soundtrack score last Friday, a company which has had Oscar success with beloved soundtracks to hit movies like Titanic, The Red Violin and Crouching Tiger, Hidden Dragon. When asked about this history-making achievement, Tyler Bates had this to say.

“That’s one of the finer accomplishments that I have managed in my career in this business.”

If any movie score should have the distinction of being the first to get the Parental Advisory label, Deadpool 2 could not be a more fitting pioneer. The original Deadpool movie helped prove that R-rated movies are financially viable again, setting box office records for highest opening weekend ($132.4 million) and highest worldwide gross ($783 million), both of which may be broken by Deadpool 2.Tyler Bates also provided the score for another summer movie, the female-lead action comedy The Spy Who Dumped Me, starring Mila Kunis and Kate McKinnon, which is slated to hit theaters nationwide August 3. He has also scored TV shows like The Punisher, Kingdom and Samurai Jack in his storied career that also includes films like The Belko Experiment, 300 and Dawn of the Dead, just to name a few. Variety broke the news about the history-making score of Deadpool 2.