Songfacts®:

• According to Anthony Kiedis in the June 2006 issue of Rolling Stone magazine, this song is about his girlfriend, model Heather "Nika" Christie. Kiedis sings about a girl who is just 18 years old, but is going too far too fast in her life. >>>

  Suggestion credit:
  Bert - Pueblo, NM
• The line before the second chorus, "The last I heard from you, you were screaming resurrect" is backed by drummer Chad Smith on vocals. You can hear the low voice if you listen closely. >>>

  Suggestion credit:
  Mischa - Winnipeg, Canada
• The song's working title was "Funkadelicish To Me" because guitarist John Frusciante listened to the groove and quipped, "Sounds Funkadelicish to me."
• According to Kiedis, this originally had a completely different instrumental chorus with a wild, "hazy, phasey" chord progression Frusciante came up with.
• The band originally envisioned Stadium Arcadium, their ninth album, as a trilogy and planned to release a disc every six months. Instead, they pared it down to a double album, with 14 songs on each disc, titled Jupiter and Mars. "She's Only 18" appears on Jupiter.