Thanks to Kip for this one.
Shortly after its release, the originality of the song was questioned in the Dan Gaffney Morning Show of Delaware based radio station WGMD 92.7. The presenters alleged that the Chili Peppers had plagiarized Tom Petty and the Heartbreakers‘ 1993 hit “Mary Jane’s Last Dance“. To demonstrate, they presented audio snippets of both songs, both side by side and simultaneously (i.e. on top of each other) several times. They stated that the chord progression, key, tempo, and the lyrical theme of the songs (both produced by Rick Rubin) showed “startling similarities” and urged listeners to “decide for themselves.”