Baby, I don't know when the danger came
  I wanna find someone that I can blame
  Call the doctor cause I am sick in love
  And I can't help it
  
  Baby, I'm worried about my mental state
  Don't know if I'll recuperate
  Think it's serious, gone from bad to worse
  And I'm in trouble
  
  (Oh) I think I'm coming down with something
  (Yeah) I know it, gonna need your medicine
  (Oh) So help me now, I'm freaking out, lover
  
  This love is serious (everybody knows I'm mad for you)
  You get me seriously out of my mind
  And I am so into us (not gonna let no one get hold of you)
  Baby, baby
  Cause this love is serious, we're seriously onto something
  Serious
  
  Lover, you love me like no one can
  So if I'm crazy, hope you understand
  Hurry doctor come, need to get me some
  You know what time it is
  
  (Oh) I think I'm coming down with something
  (Yeah) I know it, gonna need your medicine
  (Oh) So help me now, I'm freaking out, lover
  
  This love is serious (everybody knows I'm mad for you)
  You get me seriously out of my mind
  And I am so into us (let no one get hold of you)
  Baby, you're mine (you're seriously fine)
  
  And you know I can't stand
  How the girls all wanna be getting all up in my place
  So get off of my man and don't try to mess with me
  Cause this love is serious, we're seriously onto something
  We're serious, uh-oh, uh-oh
  
  You got me so delirious, I'm under your control
  Point it at me if you must, your arrow's got me poisoned
  Tell me what my treatment is, your love's got me insane
  My prescription is your kiss, and boy you got me wantin' it
  (S-E-R-I-O-U-S)
  [2x]
  
  This love is serious (everybody knows I'm mad for you)
  You get me seriously out of my mind
  And I am so into us (let no one get hold of you)
  Baby, you're mine (you're seriously fine)