Future‘s 2014 hit “Codeine Crazy” helped kick start the insane run he went on in the mid-2010s, and the producer, TM88, has shared how he produced the song.

The 808Mafia producer took to Twitter on Friday (September 30), revealing how the production of the record came about.

According to TM88, a special remix to a classic song from Lana Del Rey served as the foundation of the beat for “Codeine Crazy,” which he chopped up and altered to get the sound for one of Future’s most memorable songs.

“Codeine Crazy – I sampled Lana Del Ray’ Summertime Sadness’ remix by Cedric Gervais .. Then twisted the hell out of it,” TM88 tweeted.

“Codeine Crazy” was featured on Future’s Monster mixtape, which dropped in 2014. The project is considered a part of a trilogy of album-quality mixtapes — along with Beast Mode and 56 Nights — that Future released following his second studio album, Honest.

Monster was executive produced by Metro Boomin and contains one feature from Lil Wayne. It also includes the hit song “Fuck Up Some Commas,” which was also released as the first single from Future’s third studio album, DS2.

The Atlanta rap legend released Monster onto streaming platforms for the first time in October 2019 to celebrate its fifth anniversary. The streaming version excluded “Intro,” “Abu’s Boomin” and “Fuck Up Some Commas.”

Last month, Future reportedly sold a huge chunk of his publishing catalog from 2004 to 2020, comprised of over 612 songs that included hits like “Life Is Good” and “Jumpman” with Drake, “King’s Dead” with Kendrick Lamar, “Selfish” with Rihanna, “Low Life” with The Weeknd and “Mask Off.”

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The deal was made with Influence Media Partners, and Future said he was “proud” to be handing off some of his “most precious artwork” to Influence Media.

“I put everything into my music, and I wanted to make sure these were in good hands as I thought about the next chapter of these songs,” Future said in a statement. “I’m proud to partner up with Rene and the team at Influence Media and send a signal that this music has timeless value. My music is my art, and these songs represent some of the most precious artwork of my career.”

People criticized Future for selling his work, but the rapper wasn’t bothered by the comments tweeting: “Unsuccessful people have no clue how success works.”