 According to Inside the Hits , the lyrics refer to the commotion created by Billie Jean on a dance floor . She entices the crowd with a seductive come @-@ on before luring Jackson to her bedroom , through the fragrance of her perfume . Jackson 's vocal range spanned from a high baritone to a falsetto and he usually wrote melodies to show this range . However , in the verses of " Billie Jean " , the singer 's vocals range from a tenor to a low falsetto . A four note falsetto is showcased in the chorus and , during the last line , Jackson peaks at a full octave . The song has a tempo of 117 beats per minute and is in the key of F ♯ minor . Following the first chorus , a cello @-@ like synth eases in at the beginnings of both the third , and later , the fourth , verses . Upon the announcement that the baby 's eyes resemble Jackson 's , a voice laments , " oh no " . This is met with Jackson 's signature falsetto " hee hee " . The bridge debuts the strings , and holds a pedal tone tonic with the exception of two lines and a chord leading into the chorus . Violins are then played , followed by a four @-@ note minor guitar solo . During the solo , vocal shouts , screams and laughs are added . Throughout this , the chord progression remains unaltered and is laced with Jackson 's vocal hiccups . All the musical and vocal elements are then brought together in the final chorus . In the fade , Jackson repeats the denial of fathering Billie Jean 's child . 
