Why Did I Have To Have A Sister?

Why did I have to have a sister?
 Why can't I be just alone?
 Why did I have to have a sister?
 I'd rather be just on my own
 Just when I've made something great
 She starts hanging around
 And the next thing you know
 It's all wrecked, and lying in pieces on the ground
 Why did I have to have a sister?
 Why can't I be just alone?
 Why did I have to have a sister?
 I'd rather be just on my own
 When my sister and I get into a fight
 Mom and Dad side with her
 I just can't do anything right
 I know it's her they prefer
 Why did I have to have a sister?
 Why can't I be just alone?
 Why did I have to have a sister?
 I'd rather be just on my own
 But last night there was a creepy noise
 Somewhere over my head
 I grabbed my favourite blanket
 And I crept down the hall
 To the foot of my sister's bed
 Well, she's just little but she's real tough
 She helps fight the Monsters away
 And until my bedroom is "Monster Proof"
 I guess I'm gonna have to let her stay
 Why did I have to have a sister?
 Why can't I be just alone?
 Why did I have to have a sister?
 I'd rather be just on my own