One Hot Minute is the sixth RHCP studio album, their only with Dave Navarro, who had replaced John Frusciante – which made a considerable difference in the sound of the band. Apart from keeping the sexual themes from previous records, the LP also explores darker subject matters, such as drug use, depression, anguish, and grief. It re-integrated the use of heavy metal guitar riffs, as well. It was released on September 12, 1995, on Warner Bros. Records, and marked a reunion with Rick Rubin, producer of their breakthrough smash Blood Sugar Sex Magik – whose worldwide sucess led to Frusciante’s departure in the first place. The vocalist Anthony Kiedis, who had resumed addictions to cocaine and heroin in 1994 after being sober for more than five years, approached his lyricism with a reflective outlook on drugs and their harsh effects. Overall, One Hot Minute was a commercial disappointment, despite producing three hit singles and reaching number four on the Billboard 200 chart. It sold less than half as many copies as its predecessor and received much less critical acclaim. Navarro was ultimately fired from the band in 1998, due to creative differences.