Red Hot Chili Peppers released Blood Sugar Sex Magik on September 24, 1991. Their fifth studio album was their first for Warner Bros. Records and their first collaboration with producer Rick Rubin. Working in a house in Los Angeles instead of a conventional studio, Anthony Kiedis, Flea, John Frusciante and Chad Smith made room for ideas that stretched beyond the band’s established mix of funk, punk and rap.
“Under the Bridge” was one of the clearest examples. In a 2021 Los Angeles Times oral history, Kiedis and Rubin recalled how the producer came across the words in the singer’s notebook. Kiedis had written about loneliness during early sobriety but did not think the material belonged with the Chili Peppers. Rubin encouraged him to share it anyway. The others responded enthusiastically, allowing a song Kiedis had kept apart from the band to become part of the album.
Even its opening guitar passage came together separately. Engineer Brendan O’Brien told Rick Beato in a 2024 interview that the band had already recorded the song when Frusciante wanted to add the introduction. O’Brien recorded the new passage and edited it onto the existing performance. He used a microphone and compressor setup that had been prepared for acoustic guitar, placing it in front of Frusciante’s small amplifier. That decision helped account for the unusually compressed sound of the opening.
Frusciante had also become more confident about what he could contribute. He had already played on Mother’s Milk, but Flea told Guitar World in 2011 that the guitarist was finding his own identity within the group during these sessions. “John was really coming into his own as an artist,” he said. Frusciante’s move toward simpler parts encouraged Flea to reconsider his bass playing, too. In the Los Angeles Times account, Flea described concentrating on what the guitar writing needed, including moments that called for restraint.
The house mattered to the record’s sound as well as its working routine. Recording equipment was installed inside, giving the musicians an alternative to booking time in a commercial studio. Smith’s drums benefited from the room itself. In a 2014 interview for Rhythm, published by MusicRadar, O’Brien explained that he used the room’s natural sound across much of the album. By controlling how long that sound remained audible after a drum hit, he could create the effect of a snare reverb without relying on an added reverb effect. The space surrounding the kit became part of the recording.
The performances still required deliberate studio work. O’Brien recalled recording different elements as the sessions progressed, rather than completing every drum track before moving on. Some songs were played through, while others were assembled from sections, with edits made on tape. Keeping the band’s energy intact involved decisions about which performances belonged together as well as how the instruments sounded in the room.
Those choices reached an audience beyond the band’s earlier records. “Under the Bridge” became their first U.S. Top 10 single in 1992, reaching No. 2. “Give It Away” earned Red Hot Chili Peppers their first Grammy at the 1993 ceremony, winning Best Hard Rock Performance With Vocal.
