Otherside was released by Red Hot Chili Peppers as a single in 2000 from their 1999 album Californication. Written in memory of former guitarist Hillel Slovak, who died from a heroin overdose, the lyrics deal directly with addiction and recovery, themes that also shaped singer Anthony Kiedis at the time. The song became one of the band's most enduring hits, reaching the top of alternative charts in the US, and its distinctive guitar intro remains widely shared online in short clips, edits and nostalgic rock compilations decades later.