Reasons:

Because she has been in 17 school productions.
Because she's gotten the lead in every school play since kindergarten.
Because she has the best clothes.
Because her screams are the best!
Because she is a blonde bombshell.
Because she is fabulous!
Because she's what we've been looking for.
Because she is gonna bop to the top.
Because her song reprises rock.
Because she's everyone's favorite drama queen.
Because she looks great with everyone.
Because she really does have a good heart.
Because she is East High's primo girl.
Because no one else could look that good with a pineapple on their head.
Because she has pink, personalised golf balls.
Because, "gimme a beat."
Because she never lies, except when necessary.
Because the senior year spring musical would have been awesome as a one-woman show.
Because she wants it all.
Because she truly rocks the stage.
Because in both the wrong and right costumes, she still looked fabulous.
Because she is so fabulous, she submitted a boxful of photos for the yearbook.
Because her dog has as many fabulous outfits as she does.
Because she needs her own personal assistant.
Because performers can't fool her.
Because, "it's ours, Ryan."
Because the show must go on.
Because she knows where it ends; center stage, a single spotlight.
Because entertainers are so temperamental.
Because she can hold hands around the campfire some other time, right now she has a show to do.